500 error when creating first full website package

When creating a new package I get 500 error immediately upon ‘Create New Package’, all pre-check tests pass.

When runnning a db only backup it sticks at 10%. Related errors from both processes.

[30-Mar-2023 02:03:13 UTC] PHP Warning:  Undefined variable $format_file_dirs in /home/redacted/public_html/production/wp-content/plugins/fastdup/includes/Admin/Package.php on line 243
[30-Mar-2023 02:03:13 UTC] PHP Warning:  Trying to access array offset on value of type null in /home/redacted/public_html/production/wp-content/plugins/fastdup/includes/Admin/Package.php on line 243
[30-Mar-2023 02:03:13 UTC] PHP Warning:  Undefined variable $format_file_dirs in /home/redacted/public_html/production/wp-content/plugins/fastdup/includes/Admin/Package.php on line 244
[30-Mar-2023 02:03:13 UTC] PHP Warning:  Trying to access array offset on value of type null in /home/redacted/public_html/production/wp-content/plugins/fastdup/includes/Admin/Package.php on line 244

[30-Mar-2023 02:11:24 UTC] PHP Fatal error:  Uncaught ArgumentCountError: Too few arguments to function NJT\FastDup\Admin\Helper\Helper::format_path_filter(), 1 passed in /home/redacted/public_html/production/wp-content/plugins/fastdup/includes/Admin/Package.php on line 219 and exactly 2 expected in /home/redacted/public_html/production/wp-content/plugins/fastdup/includes/Admin/Helper/Helper.php:14
Stack trace:
#0 /home/redacted/public_html/production/wp-content/plugins/fastdup/includes/Admin/Package.php(219): NJT\FastDup\Admin\Helper\Helper::format_path_filter('/home/redacted...')
#1 /home/redacted/public_html/production/wp-content/plugins/fastdup/includes/Endpoint/PackageApi.php(184): NJT\FastDup\Admin\Package->create_package('full_site', Array)
#2 /home/redacted/public_html/production/wp-includes/rest-api/class-wp-rest-server.php(1171): NJT\FastDup\Endpoint\PackageApi->build_package(Object(WP_REST_Request))
#3 /home/redacted/public_html/production/wp-includes/rest-api/class-wp-rest-server.php(1018): WP_REST_Server->respond_to_request(Object(WP_REST_Request), '/njt-fastdup/v1...', Array, NULL)
#4 /home/redacted/public_html/production/wp-includes/rest-api/class-wp-rest-server.php(442): WP_REST_Server->dispatch(Object(WP_REST_Request))
#5 /home/redacted/public_html/production/wp-includes/rest-api.php(410): WP_REST_Server->serve_request('/njt-fastdup/v1...')
#6 /home/redacted/public_html/production/wp-includes/class-wp-hook.php(308): rest_api_loaded(Object(WP))
#7 /home/redacted/public_html/production/wp-includes/class-wp-hook.php(332): WP_Hook->apply_filters(NULL, Array)
#8 /home/redacted/public_html/production/wp-includes/plugin.php(565): WP_Hook->do_action(Array)
#9 /home/redacted/public_html/production/wp-includes/class-wp.php(399): do_action_ref_array('parse_request', Array)
#10 /home/redacted/public_html/production/wp-includes/class-wp.php(780): WP->parse_request('')
#11 /home/redacted/public_html/production/wp-includes/functions.php(1332): WP->main('')
#12 /home/redacted/public_html/production/wp-blog-header.php(16): wp()
#13 /home/redacted/public_html/production/index.php(17): require('/home/redacted...')
#14 {main}
  thrown in /home/redacted/public_html/production/wp-content/plugins/fastdup/includes/Admin/Helper/Helper.php on line 14

Relevant info from pre checks:

Web Server: 'Apache'
Pass
PHP Open BaseDir: ''
Pass
PHP Version: '8.0.28'
Pass
PHP Max Execution Time: '0'
Pass
PHP ZipArchive: 'enabled'
Pass
Folder: '/home/redacted/public_html/production/wp-content/njt-fastdup'
Pass
Disk Space Available: '45.95 GB'
Pass