FS youth league disconnection issue

I tried to redo all tactics but it didn't work. But when I deleted whole squad and made a new one with new tactics from the scratch in game (not thru webapp or smartphone app) it stopped to disconnect me. 

i found the issue that was causing this problem.(at least in my case). one of the new Future Stars players is most definitely bugged. try to use different players. if you're going for 11 young players in your squad for the objective, try to find some players that you've already played with them before.

after trying every method i could find, and nothing fixed my issue, i replaced around 10 of my future stars player that i recently packed, with some young players that i already owned. i got in the game and did not get kicked out of the match 

It's something to do with player position on field or they tactics. Deleting the whole squad and creating it with the same players and building the tactics form the scratch will help to fix issue too.