is it a fresh installation or upgrade?
If you don’t have code blocks exists, please do the following
WARNING: Make sure you don’t have any exists/important code Blocks as we’re giong to erase all the data.
#1. Go to CJT Blocks page.
#2. Click on the Settings menu from the top general Toolbar.
#3. Open Uninstall tab => Select “Wipe Out Data” checkbox.
#4. Go to WordPress plugins page, deactivate and delete CJT Plugin,
#5. Install it again.