Hello,

you can fix the problem in the following way:

- Open the file: includes/classes/admin/rlFormats.class.php
- go to method ajaxDeleteItem() and find this code:

PHP Code:
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and change it to:
PHP Code:
Only registered members can view the code. 
- then go to ajaxDeleteFormat() method and update it with:

PHP Code:
Only registered members can view the code.