Dolphin.Pro 7.2.1 Released on 19.10.2015

Bug in modules Membership For managing Memberships. not working in admin panel after fresh install Fatal error: Class 'BxDolAdminSettings' not found in httpdocs/modules/boonex/membership/classes/BxMbpModule.php on line 85

why did not anybody fix it.

Make sure the Payment module is installed - this is needed for Memberships to work, anyway.

As for a fix, it's in GitHub. But the only option for the module is to disable free join, which requires the Payment module. So in either case, really should install the module.

I'm getting the same "Fatal error: Class 'BxDolAdminSettings' not found in /home/swapark/public_html/modules/boonex/membership/classes/BxMbpModule.php on line 85"  

error message and I do have the payment module installed.  Is there any other reason this is happening?

As i mentioned in your other post. The fix for that is here. https://github.com/boonex/dolphin.pro/commit/7e550532c113f327dd20aaf822a144da2c87cee2

That code change is only if the Payment module is not installed (the idea being to use memberships without charging for them). But if it is installed, make sure it's also selected under Admin Panel => Settings => Advanced Settings => General. There's a drop-down selector to choose the default payment module, and it seems to default to 'none' sometimes. I didn't notice this option at first, until I did more digging.

 
Based on how the code change is written, it's for either. It is not coded to check and only import if the payment module is not installed. Considering this change will be part of 7.2.2, then i see no reason not to make the change.

Not possible to import languages in this version 7.2.1 either