glad you solved that issue.
for the other one, try first to add this line just after the one you added:
if that one didn’t fix it tr the following so we can see what is causing it
1 – delete the error_log file
2 – go to the page that causing the issue
3 – copy the error log message and past it here
ok so from your log error you seems to bypass the limit of allowed memory, there are several ways to increase it one that would be simple for you is to use the wp-config.php file (on your wordpress root directory)
Add the following before any file includes
define( 'WP_MEMORY_LIMIT', '128M' );
if it doesn’t work then you have to contact your hosting provider they must be not allowing php memory increase.
hoep this could be helpful