TYPO3 Exception 1294586442¶
Below, the TYPO3 community may have provided additional information or solutions for this exception. However, these may or may not apply to your particular case. If you can provide more information, you should come back here and add your experience and solution steps to this issue once you have resolved it.
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Template is not writeable¶
Happens when your file permissions (Unix) are not correct if you include TypoScript from a file and try to edit it in the backend.
Solution: Change file permissions to make the file writeable by the webserver or move the file to a writable location. For example, if you need to make changes on TypoScript of an extension you should not do it in the extension directly but in your own template files.