Can't see Gridder in Backend
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Use the Search Feature. Maybe there is already a solution to your issue.
1. Update Lay Theme and all Lay Theme Addons
2. Disable all Plugins
3. Go to Lay Options → Custom CSS & HTML, click "Turn Off All Custom Code ", click "Save Changes"
4. Now see if your problem solved itself
5. Go here, see if your problem is listed here:
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1. Post a link to where the problem is
2. If the problem is difficult to explain, post screenshots / link to a video to explain it