Error PHP Module 'gmp' already loaded at Unknown#0

Nextcloud version (eg, 20.0.5): 20.0.9
Operating system and version (eg, Ubuntu 20.04): Ubuntu 18.04.5
Apache or nginx version (eg, Apache 2.4.25): apache 2.4.29
PHP version (eg, 7.4): 7.4.21

Many PHP error messages in log:
Module 'gmp' already loaded at Unknown#0

More than 26 000 since july the 1st.
Why?

Not all PHP modules are loaded as separate modules and are part of the PHP base binary. In this case the module is loaded without a separate load statement/configuration.
If in addition a separate configuration file exists, e.g. /etc/php7/fpm/conf.d/gmp.ini, the web server tries to load the module twice which can cause these kind of messages.

# cat /etc/php7/fpm/conf.d/gmp.ini
extension=gmp.so
1 Like

Perfect @j-ed that was it as far as I can see now.

Thanks!

The file was, on this instance: /etc/php/7.4/apache2/conf.d/20-gmp.ini