Unexplainable error in push

Good evening. I had one strange case in my git usage and I have no explanation for it .I use tortoisegit with gitlab repository. TortoiseGit (Hotfix; C:\Program Files\TortoiseGit\bin)
git version 2.41.0.windows.1

I did in batch script pull command and then push . I had some changed files in my repository.And next day did the same commands. And it failed with error message:
git.exe push --progress “origin” develop:develop warning: redirecting to https://gitlab.mystorage.ru/Scripts_MSSQL.git/ To https://gitlab.mystorage.ru/Scripts_MSSQL ! [rejected] develop → develop (non-fast-forward) error: failed to push some refs to ‘https://gitlab.mystorage.ru/Scripts_MSSQL’ hint: Updates were rejected because the tip of your current branch is behind hint: its remote counterpart. Integrate the remote changes (e.g. hint: ‘git pull …’) before pushing again. hint: See the ‘Note about fast-forwards’ in ‘git push --help’ for details. git did not exit cleanly (exit code 1) (1469 ms @ 15.06.2023 20:02:48)
But none of the files i had changed uncommitted or even commited by me before were charged by any other users. Could you give me a hint how this was possible.