0 Invalid address: joomla how to overcome?

Question

PHP

Hello.
Faced a problem:
0
Invalid address:
when registering a new user.
3 days ago everything worked fine.
Managers as one swear that they didn’t poke their fingers anywhere.
Tell me please. What could be the problem?
The user is not registered and accordingly the letter does not come.
I didn't find an answer on the internet.

Answer 1

Have you updated Joomla, but the components have not been updated?
joomla.stackexchange.com/questions/16051/fix-the-i...