Can't download the source.

[InternetProtocolv6]

 * [new tag]         android-9.0.0_r10 -> android-9.0.0_r10
Resolving deltas: 100% (1731774/1731774), done.
From https://github.com/AospExtended/platform_frameworks_base
 * [new branch]      9.x        -> aex/9.x
Fetching projects: 100% (690/690)  
error: Exited sync due to fetch errors```
Sorry if I'm posting this in the wrong place.

Command used: repo sync -c -j2 --force-sync --no-clone-bundle --no-tags -f