Php Error It Causes Stop Many Process

Hi
most of the time our any change or edit on backend stopped (browser tab showing continue process but in reality anything is freeze and we should refresh page and do desired again).
Imagine, change the 10 product price together (in products list), and click on save button and waiting long time...and you should try again because not happen anything.
the below line is sample of that php errors log :
[28-Jul-2019 18:56:12 Asia/Tehran] PHP Warning: array_reverse() expects parameter 1 to be array, null given in /home/sib7/public_html/var/cache/templates/bright_theme/4b3abb3f0375ac66a457709133b232d9592d6f09.tygh.index.tpl.php on line 56
this error going Decrease only when we clear cache (we should clear cache before than any change).
we was change the php version (7.0, 7.1,7.2, 7.3,...), disable some probably effective addons, but not found any solution yet.
cs-cart version: 4.8.2 SP2
pic1: all error file is same (line 56 in 4b3abb3f0375ac66a457709133b232d9592d6f09.tygh.index.tpl.php)
pic2: capture of line 56 in the above file
please rescue ;-) and help us for resolve this problem
best regards
akbar shahmohammadi

pic1.jpg

pic2.jpg

Hello

Please try disable all thirty addons from the addon list and check result.

Best regards

Robert

Hello

Please try disable all thirty addons from the addon list and check result.

Best regards

Robert

Dear Robert

we was do it and disable all Third-party add-ons but not affect to error.

i forgot to tell a issue

about one month ago appear CSRF Attack message in site backend after most of edit and change process

we done any recommended solution in this forum (like change post_max_size and max_input_vars many times) but not resolve and in last we were forced disable that error (was changed to "false" in config.local.php)

i mean, not show Csrf Attack message now, but same thing happening (stop process)

Hello

Can you show phpinfo from your server? Have not you made any modifications directly in the core code?
Did you turn off the "My changes" addon?

Best regards

Robert

Hello

Can you show phpinfo from your server? Have not you made any modifications directly in the core code?
Did you turn off the "My changes" addon?

Best regards

Robert

Dear Robert

thanks for reply

1-please see attached PDF File (our site phpinfo details)

2-im not remember but i guess we dose not any change in the core code

3-uninstall "My change" addon now and not any affect

regards

SiB7 -phpinfo.pdf

Hello

You write about slow backend activity. These warnings are on the frontend side. There must be another reason for slow backend performance. Does the price change still work slowly after the addons are turned off?

Best regards

Robert

Dear Robert
yes you right but the CSRF error appear when we doing change on the backend.
we not feel any speed change on any backend activity when All third-party addons is off
best regards

Hello

If you change many records in the panel at the same time and you have a CSRF warning, this is a problem with too low max_input_vars

Best regards

Robert

i forgot to tell a issue

about one month ago appear CSRF Attack message in site backend after most of edit and change process

we done any recommended solution in this forum (like change post_max_size and max_input_vars many times) but not resolve and in last we were forced disable that error (was changed to "false" in config.local.php)

i mean, not show Csrf Attack message now, but same thing happening (stop process)

hello

I said before, many times change and check the Max_input_vars and Post_max_size Values

but is Ineffective

now, max_input_vars=10000

regards

Hello

Please try increse to 100 000 or 1 000 000. 1000 may not be enough.

Best regards

Robert

Hi

Dear Robert

we checked 100000, 1000000 , 10000000

but not resolve that problem

regrads

Hello

Please send me PM with access to admin panel.

Best regards

Robert