Hi there.

From time to time I get just blank (white) pages without any content in output.

For example, now I get blank page when I'm trying to add article to Pages articles database from front-end. Form template is set properly. I didn't change anything about that stuff.

Nothing in framework logs (/uploads/logs/). Nothing in server generic error log as well.

How to debug them? How to understand what's going wrong?

God, this 4.1 is making me really crazy... just because I face too many errors, whic I can't even debug.

P.S. When I'm trying to switch to IN_DEV mode (del tools uploaded), I get all front-end pages not working (blank white pages)  

Great... I also have blank white page when I'm trying to look member profile page (front-end). And absolutely NOTHING in logs... great framework,

4.13.1 i also get a blank white pages from a time to time at acp i think it only happens sometimes when i click fast do stuff fast im not sure

3 hours ago, Ibragim Pupkevich said:

P.S. When I'm trying to switch to IN_DEV mode (del tools uploaded), I get all front-end pages not working (blank white pages)

A lot of checks are disabled when IN_DEV is enabled. Create a support ticket with this information and they will assist you from there

This is definitely not a normal thing to happen.

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While you wait and if you can: set error_reporting to E_ALL in your php.ini and restart your webserver to see if you can get an error to display. DevTools comes with Whoops! Exception Handler so if you're not seeing that, then the issue is deeper