i have used my business facebook account to play galaxy legion since i joined and yesterday it suddenly stopped working cannot login on my computer, but i can still login on my I phone, has anyone got any suggestion as to why please

This isn't the same problem, but it's something related to login/user tokens that you can try:

Go to https://www.facebook.com/games/manage/, then click on the settings for GalaxyLegion and make sure the data access hasn't expired. There will be a button that says "Renew Access".

tried to find what you've said but the whole business facebook page just isn't working it seems keeps reverting to homepage none of the tabs are working,
just can't work it out

Make sure you have cookies and javascript enabled.

See: https://wmich.edu/helpdesk/internetenablecookies

am really not getting anywhere have left ticket for problem just waiting to see if they answer it

Did you try the solution I presented?

yes tried both your suggestions, 1st just took me back to same page i keep gettting, 2nd said i dont have access permission

Did you at any point in time ever have more than one Galaxy Legion ship at the same time as another? Definitely sounds like you've been banned from the app, from which there's no coming back.

He did mention though that he's still able to log in on the IPhone. If he was banned, he shouldn't be able to use it there either right? Or am I missing something? Havent heard of someone being banned in years which is why I wonder. Someone in my legion experienced something similar a couple weeks ago. They tried different solutions and nothing worked, and then a few days later they were suddenly able to log back in. He wasn't sure how it worked again.