site is experiencing technical difficulties after php 7.4

Do you get any errors in server’s PHP error.log?

Or debug.log (see how to enable it: https://www.ads-software.com/support/article/debugging-in-wordpress/ )

Hi there!

This is the part that caught my attention a little more:

the page looks become smaller

Are you able to share an example of that?

Hi and thanks for the answers.

This is a picture of /var/log/apache2/error.log just after enabling PHP 7.4
https://drive.google.com/uc?id=1xPHgSmU06WYIsJN_Ee8i9KXObhEQ-OFE

And this is a screenshot for the problem just after enabling PHP 7.4
https://drive.google.com/uc?id=1dFPWSGhYt7YLO3p4yLdL5dWdc9wfOE6G

And this is a screenshot while the site works normally with PHP 7.3
https://drive.google.com/uc?id=1FLSYEstaUsupd_myQIK_yJAOv-Yr5_GR

Oh that’s odd. Does it happen in all pages?

Just from reading that error log, it looks like the social warfare plugin might be having some trouble. Have you tried deactivating that to see if that resolves at least that issue. Supposing you haven’t already.

Yes, I enabled again PHP 7.4 and disabled social warfare and the pages works good so it’s a social warfare. I updated this plugin to the latest version but the problem still exists.
Regarding the log could you please tell me how to resolve this problem? Now I’m back to php 7.3 and waiting your answer.