backup hickup

Hello,
[STEP] [2021-05-02 10:30:58] Initializing backup…
[INFO] [2021-05-02 10:30:58] Backup & Migration version: 1.0.9
[INFO] [2021-05-02 10:30:58] Site which will be backed up: https://www.shirathamidbar.co.il
[INFO] [2021-05-02 10:30:58] PHP Version: 7.2.34
[INFO] [2021-05-02 10:30:58] Web server: LiteSpeed
[INFO] [2021-05-02 10:30:58] Max execution time (in seconds): 259200
[INFO] [2021-05-02 10:30:58] Checking if backup dir is writable…
[INFO] [2021-05-02 10:30:58] Initializing custom error handler
[SUCCESS] [2021-05-02 10:30:58] Yup it is writable…
[INFO] [2021-05-02 10:30:58] PHP CLI is available – plugin will try to run server script.
[STEP] [2021-05-02 10:30:58] Scanning files…
[STEP] [2021-05-02 10:31:05] Checking free space, reserving…
[INFO] [2021-05-02 10:31:05] Requires at least 409582376 bytes. [390.61 MB]
[INFO] [2021-05-02 10:31:05] Disk free space function is not disabled – using…
[INFO] [2021-05-02 10:31:05] Checking this path/partition: /home/shiratha/public_html/wp-content/backup-migration/backups
[SUCCESS] [2021-05-02 10:31:05] There is 689,917.69 MB free. [673.75 GB]
[SUCCESS] [2021-05-02 10:31:05] Great! We have enough space.
[SUCCESS] [2021-05-02 10:31:05] Confirmed, there is more than enough space, checked: 409582376 bytes
[INFO] [2021-05-02 10:31:05] Scanning done – found 24610 files…
[SUCCESS] [2021-05-02 10:31:05] Backup initialized…
[STEP] [2021-05-02 10:31:05] Initializing archiving system…
[SUCCESS] [2021-05-02 10:31:05] Archive system initialized…
[STEP] [2021-05-02 10:31:05] Preparing map of files…
[SUCCESS] [2021-05-02 10:31:05] Files prepared.
[INFO] [2021-05-02 10:31:05] Starting compression process…
[STEP] [2021-05-02 10:31:05] Smart memory calculation…
[INFO] [2021-05-02 10:31:05] There is 1024 MBs of memory to use
[INFO] [2021-05-02 10:31:05] WordPress memory limit: 1024 MBs
[SUCCESS] [2021-05-02 10:31:05] Setting the safe limit to 230 MB
[STEP] [2021-05-02 10:31:05] Making database backup
[INFO] [2021-05-02 10:31:05] Iterating database…
[STEP] [2021-05-02 10:31:05] Reverting backup, removing file…
[ERROR] [2021-05-02 10:31:05] There was an error during backup…
[ERROR] [2021-05-02 10:31:05] Call to a member function fetch_row() on null
[STEP] [2021-05-02 10:31:05] Aborting backup…
[DOWNLOAD GENERATED] File downloaded on (server time): 2021-05-02 10:31:07
[DOWNLOAD GENERATED] Last update (seconds): 9 seconds ago
[DOWNLOAD GENERATED] Last update (date): 2021-05-02 10:30:58