"This theme file could not be saved."?

[GrooveOnBeat]

IPB Version: 4.1.11.
Theme: Default

in globalTemplate I cannot save edits unless I remove this line. Even after I disable 2 third-party applications.

{template="updateWarning" app="core" group="global" params=""}

Anyone else getting this? What can be the cause?

 

 

[Jim M]

Your template code would not be correct then if it is not saving. Is this the correct location?

[GrooveOnBeat]

That's the thing, no alterations to IPS codes and it's the default theme. Without doing any edits I press save and I get the error.

Same for the template "updateWarning". I open the unedited file and just press save I get the error.

To test I create a new theme. No edits, I open the "globalTemplate" and cannot save. I took a screenshot.

[Adlago]

Apparently there is a problem with 4.1.11
A few minutes ago I made some changes to Custom css my theme./test install/
When you try to save received the same message. Then my Custom css already empty - as if someone had delete. The theme died.
Now I wait by my host backup ...