MAJOR ISSUE!!! Editing Pages just come up blank

[Alpdog14]

I have downloaded and installed the most recent version of CMSMS 1.11.4, and now I cannot edit my pages, they just come up as blank white pages, no error, no nothing when I click on the page from the backend. Please let me know how I can fix this, I really need to update my content ASAP.

This is happening with two sites I am running CMSMS. All my modules are up-to-date, and I have done upgrades before with no problems. The extension that comes up when I click on a Page is:

mysite.com/admin/editcontent.php?_sx_=abb5baac&content_id=55&page=

Is this correct syntax, I think it is, why would the page be completely blank, no error at all.

[Jo Morg]

It has been answered already as a search would have probably shown.... see this and this.

[Alpdog14]

Thank you sorry for freaking out.