Thany you, problem resolved with your help.

now it seems that the page relative to my homepage is missing and there is nothing inside the trash

The issue is with tagDiv Speed Booster plugin

System status screenshot
https://postimg.cc/30jqJsFd
https://postimg.cc/rDwHMY0w

All requirements are met

Next step : I will try to deactivate some plugin

in fact, all posts and pages are blank like this one : https://www.unmondedaventures.fr/les-routes-les-plus-hautes-de-france/

For your information, it’s a multisite installation

I don’t know if it’s important but I’m using TablePress plugin. I have tried to deactivate it but with no change !

ok it’s fix in the new version but still issue with TD Mobile plugin
You can check with your mobile and with this page : https://www.unmondedaventures.fr/tour-monde-150-livres/

Now I have this message error when I want to activate TD Multi Purpose

L’extension n’a pas pu être activée, car elle a déclenché une erreur fatale.
Fatal error: Cannot declare class td_api_multi_purpose, because the name is already in use in /home/unmondedi/www/wp-content/plugins/td-multi-purpose/td-multi-purpose.php on line 43

the backend is now avalaible but the home page is very bad

wp super cache has been also activated too

Website = https://www.unmondedaventures.fr/
Backend = https://www.unmondedaventures.fr/wp-admin/

+1 … No update ?

Compression was enabled. Disabling compression did fix the issue. Is it normal ?

• This reply was modified 8 years by fquiquet.

ERROR MESSAGE = “ERR_CONTENT_DECODING_FAILED”

• This reply was modified 8 years by fquiquet.

Multisite is supported with WP Super Cache ?

yes, it’s checked !

All is OK now
Thank you very much for your help
You can close this ticket

and the font seems to be very strong. How can I delete all customisation of the block header 1 ?

It’s working but the text is always black even if I change the color

No, it doesn’t work

ok but at which level in style.css ?

It doesn’t work because the custom CSS override all customisation. Right ?

OK, it’s working but now how to have a different color for each header like here https://demo.tagdiv.com/newspaper/block-header-1/