PHP 7.4 upgrading issue

[Nazzal]

Hello everyone,

The Notification error at upper red box (an error has occurred plz contact...etc) appears everytime you visit the website for the first time or return to the website a while later.
Please let me know if anyone managed to solve this error after upgrading to PHP7.4?

[Nazzal]

I managed to solve the common issue for PHP7.4:
(array and string offset access syntax with curly braces is deprecated...line#)
by replacing {} with [] in the mentioned lines and its disappeared and works fine but the error Red Box still appears.

[Jenő Kocsi]

I'm also a PHP 7.4 user, but I don't get this error

[Joe Can]

I am using PHP 7.4 and do not have this problem.

[Blackred]

I had the same problem and especially with the file import from the admin.

I asked Rudi, I had to switch back to version 7.2 because some things are not compatible with 7.4.