Restoration failure UpdrafPlus Permission issues

Hello,

I tried to restore my webpage via UpdraftPlus and it worked the last time but this time I get an error message:

Unpacking backup… (backup_2019-09-03-0010_MyLuna_767777612544-others.zip, 18.4 MB)
Unzip progress: 1135 out of 1135 files (8.4 KB, languages-old/nl_NL-803bf1ce2131e13efc590c1bc47851fc.json)
Move /home/lauravandenelzen.com/public_html/myluna-schmuck.de/wp-content/mu-plugins -> /home/lauravandenelzen.com/public_html/myluna-schmuck.de/wp-content/mu-plugins-old: Failed. Destination Directory UID=6601, GID=4485. Effective/real user IDs of the current process: 6601/6601. Effective/real group IDs of the current process: 4485/4485.
Error message: Could not move old files out of the way. You should check the file ownerships and permissions in your WordPress installation (/home/lauravandenelzen.com/public_html/myluna-schmuck.de/wp-content/mu-plugins)
Restore failed…

Move /home/lauravandenelzen.com/public_html/myluna-schmuck.de/wp-content/mu-plugins -> /home/lauravandenelzen.com/public_html/myluna-schmuck.de/wp-content/mu-plugins-old: Failed. Destination Directory UID=6601, GID=4485. Effective/real user IDs of the current process: 6601/6601. Effective/real group IDs of the current process: 4485/4485.

I’m a little overwhelmed by this message because I don’t have any technical knowledge nor did I change any settings or permessions. So, I’m very confused why updraft is questioning my file ownerships and permissions in WordPress installation.

Can anybody help me?
Thanks in advance!

Best regards,
Mark

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