ERROR: Step aborted: too many attempts!

Thank you for your comment. I will do it to see the result.

This is the whole log file.
I upload it into the google drive.

https://drive.google.com/file/d/1VQ1d_kB8IdesfgLAPGQz_d3wzcbffL1b/view?usp=sharing

Thanks for your assistance.

Thanks for your correspondence.
I have checked to see all of those folders/files were already excluded.
Anything else I need to check further?

—

Folders to backup
Backup WordPress install folder	 /var/www/vhosts/$$samplesite.com$$/httpdocs (39.26 GB)Exclude:
 wp-includes (35.35 MB)
 ssl (0.00 B)
 .well-known (14.83 KB)
 wp-snapshots (294.39 MB)
 wp (9.59 GB)
 wp-admin (8.35 MB)
 testsite (721.49 MB)
Backup content folder	 /var/www/vhosts/$$samplesite.com$$/httpdocs/wp-content (28.62 GB)Exclude:
<del datetime="2021-09-22T02:04:28+00:00"> upgrade (0.00 B)</del>
 w3tc-config (28.20 KB)
 maintenance (2.74 MB)
<del datetime="2021-09-22T02:04:28+00:00"> cache (456.99 MB)</del>
Backup plugins	 /var/www/vhosts/$$samplesite.com$$/httpdocs/wp-content/plugins (200.29 MB)Exclude:
 woocommerce-gateway-ipay88 (185.11 KB)
 woocommerce-admin (10.41 MB)
 porto-functionality (4.68 MB)
 jetpack (23.68 MB)
 js_composer (17.55 MB)
 user-role-editor (1.19 MB)
 duplicator (4.47 MB)
 yith-woocommerce-wishlist (6.41 MB)
 woocommerce-pdf-invoices-packing-slips (17.55 MB)
 heartbeat-control (4.17 MB)
 google-sitemap-generator (1.86 MB)
<del datetime="2021-09-22T02:04:28+00:00"> __MACOSX (9.37 KB)</del>
 e-ghl-woocommerce-payment-gateway (3.28 MB)
 terms-and-conditions-popup-for-woocommerce (2.21 MB)
 pdf-embedder (8.57 MB)
 akismet (245.31 KB)
 woocommerce (26.32 MB)
 wp-sitemap-page (722.88 KB)
 responsive-age-verification (43.17 KB)
<del datetime="2021-09-22T02:04:28+00:00"> backwpup (13.60 MB)</del>
 woocommerce-jetpack (7.00 MB)
 yith-woocommerce-ajax-search (2.51 MB)
 woo-checkout-field-editor-pro (225.22 KB)
 mailchimp-for-woocommerce (1.88 MB)
 all-in-one-seo-pack (10.84 MB)
 really-simple-ssl (1.88 MB)
 dynamic-featured-image (92.44 KB)
 woocommerce-image-zoom (776.96 KB)
 contact-form-7 (606.63 KB)
 yith-woocommerce-ajax-navigation (4.99 MB)
 duplicate-page (80.83 KB)
 enhanced-e-commerce-for-woocommerce-store (2.94 MB)
 revslider (13.48 MB)
 woo-order-export-lite (5.75 MB)
Backup themes	 /var/www/vhosts/$$samplesite.com$$/httpdocs/wp-content/themes (26.05 MB)Exclude:
 porto (26.05 MB)
Backup uploads folder	 /var/www/vhosts/$$samplesite.com$$/httpdocs/wp-content/uploads (27.80 GB)Exclude:
 porto_styles (1.21 MB)
<del datetime="2021-09-22T02:04:28+00:00"> backup (0.00 B)</del>
 wpcf7_uploads (14.00 B)
 js_composer (0.00 B)
 2018 (4.47 MB)
 2016 (0.00 B)
 wc-logs (511.37 KB)
<del datetime="2021-09-22T02:04:28+00:00"> backwpup-2b2765-logs (11.67 MB)</del>
<del datetime="2021-09-22T02:04:28+00:00"> database-backups (70.98 MB)</del>
<del datetime="2021-09-22T02:04:28+00:00"> backwpup-2b2765-backups (25.33 GB)</del>
<del datetime="2021-09-22T02:04:28+00:00"> manual-backup (2.09 GB)</del>
 porto_tmp_dir (0.00 B)
 porto_placeholders (15.24 KB)
 2021 (34.78 MB)
 wpo_wcpdf (12.67 MB)
 woocommerce_uploads (9.62 MB)
 aioseo-logs (0.00 B)
 2020 (53.23 MB)
 2019 (191.37 MB)
 revslider (5.20 MB)
<del datetime="2021-09-22T02:04:28+00:00"> backwpup-2b2765-temp (398.00 B)</del>
 wpdesk-logs (445.00 B)
 redux (65.00 B)
Extra folders to backup	
Separate folder names with a line-break or a comma. Folders must be set with their absolute path!

Exclude from backup
Thumbnails in uploads	 Don't backup thumbnails from the site's uploads folder.
Exclude files/folders from backup	
.DS_Store,.git,.svn,.tmp,/node_modules/,desktop.ini
Separate file / folder name parts with a line-break or a comma. For example /logs/,.log,.tmp

Special options
Include special files	 Backup wp-config.php, robots.txt, nginx.conf, .htaccess, .htpasswd, favicon.ico, and Web.config from root if it is not included in backup.
Use one folder above as WP install folder	 Use one folder above as WordPress install folder! That can be helpful, if you would backup files and folder that are not in the WordPress installation folder. Or if you made a "Giving WordPress Its Own Directory" installation. Excludes must be configured again.

Thank you very much for your support.
I did housekeeping for the site data then found a huge backup data in the wp folder.
Moved those unnecessary folders/files to another directory then the backup task successfully completed without errors.
Please close this ticket. Thanks again!