Kicked out of co-op for no reason?

I originally was in a co-op that I joined when I first joined the game. I was loyal to them because they were just as loyal to me. I mean we all used to help each other out and I liked being with the same co-op for so long and creating a weird connection to these random accounts that would help me, and I them.

Eventually the co-op died and no one was helping so I moved groups. I specifically looked for an open group with people who help out. And I found one I really liked and I was in it for maybe 2 months?(Edit: I was in it for 12 Days)

I was helping them like they were me and all was good? But I just got a notification that I was ‘kicked out for not completing tasks’? I forget about this game sometimes for days at a time but always have and always have come back within 4 days to be brutally honest. I don’t get it? What tasks was I not completing bc I was still doing sales and mining and shipping and building factories/homes/community places?

Let me know bc I’m confused. Was I kicked out bc I wasn’t doing something, or was I just kicked out of a co-op ?