Exception: Git command failed to perform periodic pull: fatal: update_ref failed for ref 'HEAD': cannot lock ref 'HEAD': is at 61af4143d78919903ae60f1953439dab8b4fd17c but expected 374585e285d4277299f91b7763cab43ad941502e

Exception: Git command failed to perform periodic pull: fatal: update_ref failed for ref 'HEAD': cannot lock ref 'HEAD': is at 61af4143d78919903ae60f1953439dab8b4fd17c but expected 374585e285d4277299f91b7763cab43ad941502e

An unforeseen error has occured. This is most likely a bug somewhere. It might be a problem in the gitbacked plugin.

More info has been written to the DokuWiki error log.