I have got suspended on Xbox and I have no clue why

You would need to go to the enforcement site for any information about your suspension and to see about submitting a case review. https://support.xbox.com/en-US/help/family-online-safety/enforcement/how-to-submit-a-case-review

For information about your ban and to see about submitting a case review, you would need to go to http://enforcement.xbox.com

Communications bans are not just from voice communications but any form of communications

Here is a sample for the enforcement site about comm bans:

Communications Suspensions
Communication suspensions are imposed due to inappropriate conduct during communication activities on Xbox Live. This suspension blocks an account from accessing any communication features on Xbox Live, including text messages, voice messages, video communications,
Skype on Xbox One, in-game chat, and party chat. Communications suspensions are issued for a specified temporary duration, often of 1, 7, or 14 days.

I had the same problem , Make sure ur memory has enough space and if it doesn't , Format ur hard drive, u can buy a new HDD or use Flash memories too

Maybe you should go to your memory, delete the game, and start over. I had the same problem with a previousgame, and this worked. I hope it helps.