Perhaps you are indirectly hit by this one; https://github.com/Orckestra/C1-CMS/issues/33 - at least let's try to see if it fixes your issue also.
The original issue is fixed in 5.0, but you can probably get rid of it in one of three ways (here I'm putting my geek dollars on the issue being these constant "Failed to format output" warnings are pumped into the logs which sends the log module into a death spin. This is pure guessing as I have no better ideas).
Try one of the following:
The original issue is fixed in 5.0, but you can probably get rid of it in one of three ways (here I'm putting my geek dollars on the issue being these constant "Failed to format output" warnings are pumped into the logs which sends the log module into a death spin. This is pure guessing as I have no better ideas).
Try one of the following:
- The structured fix: Ensure that the output is xhtml - typically only Web Form controls can create invalid xhtml, so you would look at one of those.
- The super easy fix: Turn off the output formatting - we added a switch in version 5.0 that can do this, but for your older version here you should edit ~/Renderers/Page.aspx.cs and comment out the line "xhtml = _renderingContext.FormatXhtml(xhtml);"
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The see-no-evil fix: Turn off logging (I'm not documenting how, cause you probably don't want this)