Hello Alexey, 

Thank you for the information. The path I was using was not correct, when correct path used everything worked. I didn't have to specify directory "inc", even one level up it works (for me). 

The only issue is:

1. For "flash chat" I get " You need to install Jot Messenger plugin(s), before chat transfer "

2. For "Paid Memberships level, Members info" I get "You need to install Paid Levels plugin(s), before membership_levels transfer "

So both I suppose they were for free and now we have to pay, correct? 

Jot Messenger 100$/year

Paid Levels 50$/per year

Thanks