MX patito feo 19.3 : trying to apt upgrade

[ellanios82 <ellanios82@gmail.com>]

Hello List ,

 - since 3 or 4 days, i have not been able to

 "apt upgrade" , and --fix-missing does not solve problem

....

 this is what am seeing :

"Need to get 50.7 MB/51.0 MB of archives.
After this operation, 3,768 kB disk space will be freed.
Do you want to continue? [Y/n]
Ign:1 http://ftp.cc.uoc.gr/mirrors/linux/mx/mx/repo buster/main amd64 
mx-docs all 20200817mx19+1
Err:1 http://ftp.cc.uoc.gr/mirrors/linux/mx/mx/repo buster/main amd64 
mx-docs all 20200817mx19+1
  404  Not Found [IP: 2001:648:2c00:6c05::2 80]
E: Failed to fetch 
http://ftp.cc.uoc.gr/mirrors/linux/mx/mx/repo/pool/main/m/mx-docs/mx-docs_20200817mx19+1_all.deb 
404  Not Found [IP: 2001:648:2c00:6c05::2 80]
E: Unable to fetch some archives, maybe run apt-get update or try with 
--fix-missing?"

...

 - What, please, may i try next, to resolve problem?


 thank you

.