Edit pages blank after presspermit install

That’s probably an “out of memory” error. Sometimes if you are running close to your server’s PHP memory limit, activating Press Permit Core will push your usage over that limit.

You could confirm by reviewing your PHP error log or temporarily activating a plugin like Error Log Monitor to display recent entries on the WP dashboard. Plugins are also available to review and increase your PHP memory limit where appropriate.

I increase wordpress memory limit. But it’s not the problem (it was 40M):
memory: 31.89 of 120 MB (27%) | WP LIMIT: 96 MB

I cannot access the error_log (Error Log Monitor show nothing), display_errors is activated and I see no error output.

The problem is always here: without Press Permit I can edit my pages, with it I can’t.

What if you temporarily modify your wp-config.php file, setting WP_DEBUG to true? Is an error message then displayed on the white screen?

Nothing about Press Permit. Only 4 warnings about strict standards on an another plugin advanced-menu-widget.

Can you try to identify conflict sources by temporarily deactivating other plugins. I don’t have any local leads on this.

It was a conflict with a deactivated plugin named form-manager. I don’t use it and it doesn’t exist anymore on www.remarpro.com. So I delete it. And all is working fine now. Thank you.