Hi

Check "Dashboard / Reports / Logs" if there are logs with date when you added gallery.

You can also temporarily show full errors (Dashboard / System Settings / Environment / Debug Settings) and see if something is being displayed when adding gallery.

You can also press CTRL+SHIFT+I on Chrome browser and see if there are any errors in "Console" tab.

And to be sure, clear cache in c5 dashboard before testing.

Hi,
thx for your quick reply!
What I found in the log was the following two messages:
1.
Exception Occurred: /home/baysblac/public_html/Beton5/concrete/vendor/imagine/imagine/src/Gd/Image.php:703 Allowed memory size of 134217728 bytes exhausted (tried to allocate 3840001 bytes) (1)
2.
Exception Occurred: /home/baysblac/public_html/Beton5/concrete/vendor/imagine/imagine/src/Gd/Image.php:688 Allowed memory size of 134217728 bytes exhausted (tried to allocate 24576 bytes) (1)

BTW the home page still shows up in the front end if not logged in.
As soon I'm logged in I can't see the homepage anymore.

I cleared the cache anyway

My Firefox console shows the following error:
Protocol error (unknownError): Could not load the source for blob:https://dev.baysblackhouse.co.uk/a3936779-05e5-9e4a-84eb-fd2ca8a5257d.
[Exception... "Failed to open input source 'blob:https://dev.baysblackhouse.co.uk/a3936779-05e5-9e4a-84eb-fd2ca8a5257d'" nsresult: "0x805303f4 (<unknown>)" location: "JS frame :: resource://devtools/shared/DevToolsUtils.js :: mainThreadFetch/< :: line 666" data: yes]
Stack: mainThreadFetch/<@resource://devtools/shared/DevToolsUtils.js:666:15
mainThreadFetch@resource://devtools/shared/DevToolsUtils.js:531:10
_getSourceText@resource://devtools/server/actors/source.js:299:27
Line: 666, column: 0

You uploaded too big images which your server can't handle (not enough ram).
Enable client-side resizing (which is done by your browser) in dashboard:
/dashboard/system/files/image_uploading
1920x1080 px is more than fine for websites, and your server will handle them with no problem.
Now replace those big images (or just delete them and upload again) in File Manager.

THANK YOU!
I never would have had the idear that was the reason...
The page is showing again now.
BTW the images weren't that large :-)

Thx again for your help!
Cheers