Rejoin to a server problem

I left a server yesterday morning at 28th of February 2021and tried to rejoined in the afternoon of said date. Once I typed in the servers link and press accept invite. It said "This user is banned from this guild." The server owner is my personal friend and gave me himself the servers link again Then we still have the same outcome. Then he took a look at the banned users lists. And my account is not in that list. But when I always try to rejoin it states that "This user is banned from this guild." So now I can't rejoin in that server. What can I possibly do to solve this issue?