DownloadFileRangeByName: internal_error: internal incident

[santo74]

Until yesterday my backups were running fine, but now I'm suddenly getting the following error when connecting to the repository:

DEBUG Creating cache directory '/root/.cache/kopia/a8d98c124c954dca' with max size 5242880000
DEBUG throttling limits from connection info	{"limits":{}}
DEBUG finished initial cache scan	{"cache":"contents","duration":"72.777µs","totalRetainedSize":0,"tooRecentBytes":0,"tooRecentCount":0,"maxSizeBytes":5242880000,"limitBytes":0,"inUsePercent":0}
DEBUG finished initial cache scan	{"cache":"metadata","duration":"39.023µs","totalRetainedSize":0,"tooRecentBytes":0,"tooRecentCount":0,"maxSizeBytes":5242880000,"limitBytes":0,"inUsePercent":0}
DEBUG finished initial cache scan	{"cache":"index-blobs","duration":"38.412µs","totalRetainedSize":0,"tooRecentBytes":0,"tooRecentCount":0,"maxSizeBytes":5242880000,"limitBytes":0,"inUsePercent":0}
DEBUG got error DownloadFileRangeByName: internal_error: internal incident when GetBlob(xn53_fc790a49a926e57377a8f0666526589f-sa2cc73bc2fd4a114128-c1,0,-1) (#0), sleeping for 100ms before retrying
DEBUG got error DownloadFileRangeByName: internal_error: internal incident when GetBlob(xn53_fc790a49a926e57377a8f0666526589f-sa2cc73bc2fd4a114128-c1,0,-1) (#1), sleeping for 150ms before retrying
DEBUG got error DownloadFileRangeByName: internal_error: internal incident when GetBlob(xn53_fc790a49a926e57377a8f0666526589f-sa2cc73bc2fd4a114128-c1,0,-1) (#2), sleeping for 225ms before retrying
DEBUG got error DownloadFileRangeByName: internal_error: internal incident when GetBlob(xn53_fc790a49a926e57377a8f0666526589f-sa2cc73bc2fd4a114128-c1,0,-1) (#3), sleeping for 337.5ms before retrying
DEBUG got error DownloadFileRangeByName: internal_error: internal incident when GetBlob(xn53_fc790a49a926e57377a8f0666526589f-sa2cc73bc2fd4a114128-c1,0,-1) (#4), sleeping for 506.25ms before retrying
DEBUG got error DownloadFileRangeByName: internal_error: internal incident when GetBlob(xn53_fc790a49a926e57377a8f0666526589f-sa2cc73bc2fd4a114128-c1,0,-1) (#5), sleeping for 759.375ms before retrying
DEBUG got error DownloadFileRangeByName: internal_error: internal incident when GetBlob(xn53_fc790a49a926e57377a8f0666526589f-sa2cc73bc2fd4a114128-c1,0,-1) (#6), sleeping for 1.1390625s before retrying
DEBUG got error DownloadFileRangeByName: internal_error: internal incident when GetBlob(xn53_fc790a49a926e57377a8f0666526589f-sa2cc73bc2fd4a114128-c1,0,-1) (#7), sleeping for 1.70859375s before retrying
DEBUG got error DownloadFileRangeByName: internal_error: internal incident when GetBlob(xn53_fc790a49a926e57377a8f0666526589f-sa2cc73bc2fd4a114128-c1,0,-1) (#8), sleeping for 2.562890625s before retrying
DEBUG got error DownloadFileRangeByName: internal_error: internal incident when GetBlob(xn53_fc790a49a926e57377a8f0666526589f-sa2cc73bc2fd4a114128-c1,0,-1) (#9), sleeping for 3.844335937s before retrying
ERROR failed to open repository: unable to create shared content manager: error loading indexes: error downloading indexes: error loading index blob xn53_fc790a49a926e57377a8f0666526589f-sa2cc73bc2fd4a114128-c1: getContent: unable to complete GetBlob(xn53_fc790a49a926e57377a8f0666526589f-sa2cc73bc2fd4a114128-c1,0,-1) despite 10 retries: DownloadFileRangeByName: internal_error: internal incident
ERROR error connecting to repository: unable to create shared content manager: error loading indexes: error downloading indexes: error loading index blob xn53_fc790a49a926e57377a8f0666526589f-sa2cc73bc2fd4a114128-c1: getContent: unable to complete GetBlob(xn53_fc790a49a926e57377a8f0666526589f-sa2cc73bc2fd4a114128-c1,0,-1) despite 10 retries: DownloadFileRangeByName: internal_error: internal incident

The repository is on b2.

What does this error mean and how can I get this fixed?
I already looked at this information but that doesn't resolve the issue.