How to fix 500 error?

Question

Apache HTTP Server

Good evening, I have a VPS with a BrainyCP control panel.
Put there REG.Panel from reg.ru. The panel refused to work and began to knock out the error "500 internal server". I looked at the Apache logs, there I saw the following line ".htaccess: Invalid command 'php_flag', perhaps misspelled or defined by a module not included in the server configuration". I realized that the error was with the php flag and commented out the line “php_flag register_globals Off” in .htaccess.
After that, REG.Panel refused to work at all.
Well, what is the “php_flag register_globals Off” parameter for and how to fix the error “.htaccess: Invalid command 'php_flag', perhaps misspelled or defined by a module not included in the server configuration” in order to activate it?

Answer 1

The parameter register_globals Offis needed in order to turn off register_globals , who would have thought. This mode was considered obsolete for many years, and was completely cut out six years ago.
The php_flag directive only works if php is connected to Apache as mod_php.
You have options:
1. figure out what it is and set it up
2. hire an admin or contact technical support
3. throw away this squalor entirely.