Backups Fail recently

Worked fine for months 🙂
Now I get emaislabout errors backing up.
Here is the log, hope you can advise, thank you.(
[file names changed to protect the innocent :-)]

[INFO] BackWPup 3.10.0; A project of Inpsyde GmbH
[INFO] WordPress 5.8.1 on https://www.idmimagineering.co.uk/
[INFO] Log Level: Normal (translated)
[INFO] BackWPup job: JRP MEDIA
[INFO] Logfile is: backwpup_log_82bcd6_2021-10-24_14-00-01.html
[INFO] Backup file is: 2021-10-24_14-00-01_VI5VXYNF01.zip
[24-Oct-2021 14:00:01] 1. Try to backup database …
[24-Oct-2021 14:00:01] Connected to database xxxxxxxxxxxxxxxxxxxx on localhost
[24-Oct-2021 14:00:04] Added database dump "xxxxxxxxxxxxxxxxxxx.sql.gz" with 12.35 MB to backup file list
[24-Oct-2021 14:00:04] Database backup done!
[24-Oct-2021 14:00:04] 1. Trying to make a list of folders to back up …
[24-Oct-2021 14:00:06] Added "wp-config.php" to backup file list
[24-Oct-2021 14:00:06] 2984 folders to backup.
[24-Oct-2021 14:00:07] 1. Trying to generate a file with installed plugin names …
[24-Oct-2021 14:00:07] Added plugin list file "IDM-Imagineering.pluginlist.2021-10-24.txt" with 5.03 KB to backup file list.
[24-Oct-2021 14:00:07] 1. Trying to generate a manifest file …
[24-Oct-2021 14:00:07] Added manifest.json file with 5.62 KB to backup file list.
[24-Oct-2021 14:00:07] 1. Trying to create backup archive …
[24-Oct-2021 14:00:07] Compressing files as ZipArchive. Please be patient, this may take a moment.
[24-Oct-2021 14:02:15] Backup archive created.
[24-Oct-2021 14:02:15] Archive size is 624.65 MB.
[24-Oct-2021 14:02:15] 24581 Files with 840.70 MB in Archive.
[24-Oct-2021 14:02:17] 1. Try to send backup file to Dropbox …
[24-Oct-2021 14:02:17] Token has expired; new token has been obtained
[24-Oct-2021 14:02:17] Authenticated with user's Dropbox: JRP Media
[24-Oct-2021 14:02:17] Uploading to Dropbox …
[24-Oct-2021 14:02:17] Beginning new file upload session
[24-Oct-2021 14:02:45] Token has expired; new token has been obtained
[24-Oct-2021 14:03:15] Token has expired; new token has been obtained
[24-Oct-2021 14:03:45] Token has expired; new token has been obtained
[24-Oct-2021 14:04:16] Token has expired; new token has been obtained
[24-Oct-2021 14:04:45] /home/idmimagi/public_html/wp-content/plugins/backwpup/src/Http/Client/WpHttpClient.php: Dropbox API: cURL error 28: Operation timed out after 5001 milliseconds with 0 bytes received
[24-Oct-2021 14:04:47] 2. Try to send backup file to Dropbox …
[24-Oct-2021 14:04:47] Token has expired; new token has been obtained
[24-Oct-2021 14:04:48] Authenticated with user's Dropbox: JRP Media
[24-Oct-2021 14:04:48] Uploading to Dropbox …
[24-Oct-2021 14:05:18] Token has expired; new token has been obtained
[24-Oct-2021 14:05:47] Token has expired; new token has been obtained
[24-Oct-2021 14:06:17] Token has expired; new token has been obtained
[24-Oct-2021 14:06:46] Token has expired; new token has been obtained
[24-Oct-2021 14:07:16] Token has expired; new token has been obtained
[24-Oct-2021 14:07:46] Token has expired; new token has been obtained
[24-Oct-2021 14:08:17] Token has expired; new token has been obtained
[24-Oct-2021 14:08:45] Token has expired; new token has been obtained
[24-Oct-2021 14:09:17] Token has expired; new token has been obtained
[24-Oct-2021 14:09:46] Token has expired; new token has been obtained
[24-Oct-2021 14:10:09] /home/idmimagi/public_html/wp-content/plugins/backwpup/src/Http/Client/WpHttpClient.php: Dropbox API: cURL error 28: Operation timed out after 5001 milliseconds with 0 bytes received
[24-Oct-2021 14:10:10] 3. Try to send backup file to Dropbox …
[24-Oct-2021 14:10:10] Token has expired; new token has been obtained
[24-Oct-2021 14:10:11] Authenticated with user's Dropbox: JRP Media
[24-Oct-2021 14:10:11] Uploading to Dropbox …
[24-Oct-2021 14:10:42] Token has expired; new token has been obtained
[24-Oct-2021 14:11:03] /home/idmimagi/public_html/wp-content/plugins/backwpup/src/Http/Client/WpHttpClient.php: Dropbox API: cURL error 28: Operation timed out after 5001 milliseconds with 0 bytes received
[24-Oct-2021 14:11:04] ERROR: Step aborted: too many attempts!
[24-Oct-2021 14:11:04] 1. Trying to check database …
[24-Oct-2021 14:11:06] Database check done!
[24-Oct-2021 14:11:06] ERROR: Job has ended with errors in 665 seconds. You must resolve the errors for correct execution.

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