Hello Dev team!
First of all I just want to say I just tried your service and I'm actually amazed with the quality. It runs smoothly, and so far does seem free as advertised. Still waiting on where's the catch 
.
Either way, I tried making a modpack server and had multiple failed attemps at loging in. Later I figured out why: it runs the 2013 version of the modpack, wich got a whole new re-do from Mindcrack into Crackpack in 2016, a "Feed the beast presents Crackpack". Is there any chance this will get updated/added?
Best regards,
WarriorPP
For reference:
2013 version https://www.feed-the-beast.com/projects/mindcrack
2016 version https://www.feed-the-beast.com…ts/ftb-presents-crackpack