Asterisk falls off, how?

Question

Asterisk

Hello!
In Asterisk while the beginner.
I ran into a problem like this, the server crashes (hangs, request timeout)
Actually, here is the log

for an extension is strongly discouraged and can have unexpected behavior. Please use '_X.' instead at line 4831 of /etc/asterisk/extensions_additional.conf
[2015-12-07 09:37:27] WARNING[1234] pbx_config.c: The use of '_.' for an extension is strongly discouraged and can have unexpected behavior. Please use '_X.' instead at line 4832 of /etc/asterisk/extensions_additional.conf
[2015-12-07 09:37:27] WARNING[1234] pbx_config.c: The use of '_.' for an extension is strongly discouraged and can have unexpected behavior. Please use '_X.' instead at line 4865 of /etc/asterisk/extensions_additional.conf
[2015-12-07 09:37:27] WARNING[1234] pbx_config.c: The use of '_.' for an extension is strongly discouraged and can have unexpected behavior. Please use '_X.' instead at line 4866 of /etc/asterisk/extensions_additional.conf
[2015-12-07 09:37:27] WARNING[1234] pbx.c: Unable to register extension 's' priority 1 in 'opros', already in use
[2015-12-07 09:37:27] WARNING[1234] pbx_config.c: The use of '_.' for an extension is strongly discouraged and can have unexpected behavior. Please use '_X.' instead at line 127 of extensions.conf
[2015-12-07 09:37:27] WARNING[1234] pbx_config.c: The use of '_.' for an extension is strongly discouraged and can have unexpected behavior. Please use '_X.' instead at line 139 of extensions.conf
[2015-12-07 09:37:27] WARNING[1234] pbx_config.c: The use of '_.' for an extension is strongly discouraged and can have unexpected behavior. Please use '_X.' instead at line 140 of extensions.conf
[2015-12-07 09:37:27] WARNING[1234] pbx_config.c: The use of '_.' for an extension is strongly discouraged and can have unexpected behavior. Please use '_X.' instead at line 141 of extensions.conf
[2015-12-07 09:37:27] WARNING[1234] pbx.c: Context 'from-internal-xfer' tries to include nonexistent context 'from-internal-custom'
[2015-12-07 09:37:27] WARNING[1234] pbx.c: Context 'from-internal-noxfer' tries to include nonexistent context 'from-internal-noxfer-custom'
[2015-12-07 09:37:27] WARNING[1234] pbx.c: Context 'from-pstn' tries to include nonexistent context 'from-pstn-custom'
[2015-12-07 09:37:27] WARNING[1234] pbx.c: Context 'from-internal-noxfer-additional' tries to include nonexistent context 'from-internal-noxfer-additional-custom'
[2015-12-07 09:37:27] WARNING[1234] pbx.c: Context 'from-internal-additional' tries to include nonexistent context 'from-internal-additional-custom'
[2015-12-07 09:37:27] WARNING[1234] pbx.c: Context 'macro-dial-one' tries to include nonexistent context 'macro-dial-one-custom'
[2015-12-07 09:37:27] WARNING[1234] pbx.c: Context 'macro-hangupcall' tries to include nonexistent context 'macro-hangupcall-custom'
[2015-12-07 09:37:27] WARNING[1234] pbx.c: Context 'macro-blkvm-check' tries to include nonexistent context 'macro-blkvm-check-custom'
[2015-12-07 09:37:27] WARNING[1234] pbx.c: Context 'macro-blkvm-clr' tries to include nonexistent context 'macro-blkvm-clr-custom'
[2015-12-07 09:37:27] WARNING[1234] pbx.c: Context 'macro-blkvm-set' tries to include nonexistent context 'macro-blkvm-set-custom'
[2015-12-07 09:37:27] WARNING[1234] pbx.c: Context 'macro-blkvm-setifempty' tries to include nonexistent context 'macro-blkvm-setifempty-custom'
[2015-12-07 09:37:27] WARNING[1234] pbx.c: Context 'macro-simple-dial' tries to include nonexistent context 'macro-simple-dial-custom'
[2015-12-07 09:37:27] WARNING[1234] pbx.c: Context 'macro-exten-vm' tries to include nonexistent context 'macro-exten-vm-custom'
[2015-12-07 09:37:27] WARNING[1234] pbx.c: Context 'macro-vm' tries to include nonexistent context 'macro-vm-custom'
[2015-12-07 09:37:27] WARNING[1234] pbx.c: Context 'macro-block-cf' tries to include nonexistent context 'macro-block-cf-custom'
[2015-12-07 09:37:27] WARNING[1234] pbx.c: Context 'macro-setmusic' tries to include nonexistent context 'macro-setmusic-custom'
[2015-12-07 09:37:27] WARNING[1234] pbx.c: Context 'macro-dial-confirm' tries to include nonexistent context 'macro-dial-confirm-custom'
[2015-12-07 09:37:27] WARNING[1234] pbx.c: Context 'vm-callme' tries to include nonexistent context 'vm-callme-custom'
[2015-12-07 09:37:27] WARNING[1234] pbx.c: Context 'from-dahdi' tries to include nonexistent context 'from-dahdi-custom'
[2015-12-07 09:37:27] WARNING[1234] pbx.c: Context 'from-zaptel' tries to include nonexistent context 'from-zaptel-custom'
[2015-12-07 09:37:27] WARNING[1234] pbx.c: Context 'macro-outbound-callerid' tries to include nonexistent context 'macro-outbound-callerid-custom'
[2015-12-07 09:37:27] WARNING[1234] pbx.c: Context 'macro-user-callerid' tries to include nonexistent context 'macro-user-callerid-custom'
[2015-12-07 09:37:27] WARNING[1234] pbx.c: Context 'macro-privacy-mgr' tries to include nonexistent context 'macro-privacy-mgr-custom'
[2015-12-07 09:37:27] WARNING[1234] pbx.c: Context 'macro-dialout-trunk' tries to include nonexistent context 'macro-dialout-trunk-custom'
[2015-12-07 09:37:27] WARNING[1234] pbx.c: Context 'tc-maint' tries to include nonexistent context 'tc-maint-custom'
[2015-12-07 09:37:27] WARNING[1234] pbx.c: Context 'macro-agent-del' tries to include nonexistent context 'macro-agent-del-custom'
[2015-12-07 09:37:27] WARNING[1234] pbx.c: Context 'macro-agent-add' tries to include nonexistent context 'macro-agent-add-custom'
[2015-12-07 09:37:27] WARNING[1234] pbx.c: Context 'from-queue-exten-only' tries to include nonexistent context 'from-queue-exten-only-custom'
[2015-12-07 09:37:27] WARNING[1234] pbx.c: Context 'from-queue-exten-internal' tries to include nonexistent context 'from-queue-exten-internal-custom'
[2015-12-07 09:37:27] WARNING[1234] pbx.c: Context 'app-queue-caller-count' tries to include nonexistent context 'app-queue-caller-count-custom'
[2015-12-07 09:37:27] WARNING[1234] pbx.c: Context 'from-queue' tries to include nonexistent context 'from-queue-custom'
[2015-12-07 09:37:27] WARNING[1234] pbx.c: Context 'ext-queues' tries to include nonexistent context 'ext-queues-custom'
[2015-12-07 09:37:27] WARNING[1234] pbx.c: Context 'app-all-queue-pause-toggle' tries to include nonexistent context 'app-all-queue-pause-toggle-custom'
[2015-12-07 09:37:27] WARNING[1234] pbx.c: Context 'app-queue-pause-toggle' tries to include nonexistent context 'app-queue-pause-toggle-custom'
[2015-12-07 09:37:27] WARNING[1234] pbx.c: Context 'macro-toggle-add-agent' tries to include nonexistent context 'macro-toggle-add-agent-custom'
[2015-12-07 09:37:27] WARNING[1234] pbx.c: Context 'macro-toggle-del-agent' tries to include nonexistent context 'macro-toggle-del-agent-custom'
[2015-12-07 09:37:27] WARNING[1234] pbx.c: Context 'app-all-queue-toggle' tries to include nonexistent context 'app-all-queue-toggle-custom'
[2015-12-07 09:37:27] WARNING[1234] pbx.c: Context 'app-queue-toggle' tries to include nonexistent context 'app-queue-toggle-custom'
[2015-12-07 09:37:27] WARNING[1234] pbx.c: Context 'ext-featurecodes' tries to include nonexistent context 'ext-featurecodes-custom'
[2015-12-07 09:37:27] WARNING[1234] pbx.c: Context 'app-callwaiting-cwon' tries to include nonexistent context 'app-callwaiting-cwon-custom'
[2015-12-07 09:37:27] WARNING[1234] pbx.c: Context 'app-callwaiting-cwoff' tries to include nonexistent context 'app-callwaiting-cwoff-custom'
[2015-12-07 09:37:27] WARNING[1234] pbx.c: Context 'app-cf-toggle' tries to include nonexistent context 'app-cf-toggle-custom'
[2015-12-07 09:37:27] WARNING[1234] pbx.c: Context 'app-cf-unavailable-prompt-on' tries to include nonexistent context 'app-cf-unavailable-prompt-on-custom'
[2015-12-07 09:37:27] WARNING[1234] pbx.c: Context 'app-cf-unavailable-on' tries to include nonexistent context 'app-cf-unavailable-on-custom'
[2015-12-07 09:37:27] WARNING[1234] pbx.c: Context 'app-cf-unavailable-off' tries to include nonexistent context 'app-cf-unavailable-off-custom'
[2015-12-07 09:37:27] WARNING[1234] pbx.c: Context 'app-cf-prompting-on' tries to include nonexistent context 'app-cf-prompting-on-custom'
[2015-12-07 09:37:27] WARNING[1234] pbx.c: Context 'app-cf-on' tries to include nonexistent context 'app-cf-on-custom'
[2015-12-07 09:37:27] WARNING[1234] pbx.c: Context 'app-cf-off-any' tries to include nonexistent context 'app-cf-off-any-custom'
[2015-12-07 09:37:27] WARNING[1234] pbx.c: Context 'app-cf-off' tries to include nonexistent context 'app-cf-off-custom'
[2015-12-07 09:37:27] WARNING[1234] pbx.c: Context 'app-cf-busy-prompting-on' tries to include nonexistent context 'app-cf-busy-prompting-on-custom'
[2015-12-07 09:37:27] WARNING[1234] pbx.c: Context 'app-cf-busy-on' tries to include nonexistent context 'app-cf-busy-on-custom'
[2015-12-07 09:37:27] WARNING[1234] pbx.c: Context 'app-cf-busy-off-any' tries to include nonexistent context 'app-cf-busy-off-any-custom'
[2015-12-07 09:37:27] WARNING[1234] pbx.c: Context 'app-cf-busy-off' tries to include nonexistent context 'app-cf-busy-off-custom'
[2015-12-07 09:37:27] WARNING[1234] pbx.c: Context 'ext-group' tries to include nonexistent context 'ext-group-custom'
[2015-12-07 09:37:27] WARNING[1234] pbx.c: Context 'macro-systemrecording' tries to include nonexistent context 'macro-systemrecording-custom'

Answer 1

Unable to register extension 's' priority 1 in 'opros', already in use
somewhere you have a macro called "opros" written incorrectly. two lines in it have the number "1"

Answer 2

Check if there is enough RAM for normal server operation.