I am using J51_Kaylee on one of my websites. This is ok so far.
In the backend I opened the template manager and created a copy of J51_Kaylee. Then I assigned this template copy to a couple of menu items. When I open one of these menu items in the frontend, I am getting this error message
0 - Class 'J51\Helper\BlockHelper' not found
I did not make any changes to the copy of the template yet.
Thank you and kind regards
Chris