Can’t Run a scan after migrating to Siteground

I have migrated two websites to Siteground and I can’t seem to use Wordfence anymore.

I have lots of other sites on Siteground that use Wordfence without an issue and I can’t seem to find what could be causing it with these two sites.

Here’s my log after running a scan with debugging mode turned on and changing max executions to 20 as per the advice to this person who had a similar issue a while back but got a much better level of service from Siteground.

I am getting the error Scan process ended after forking.

I have checked that htaccess isn’t blocking wp-admin, I have checked the IP of the server isn’t blocked and made sure memcache is turned off as per this advice https://www.wordfence.com/help/scan/troubleshooting/#scan-process-ended-after-forking

This issue is the same on the two sites I migrated.

[Oct 09 17:32:38:1633818758.675177:4:info] Scan process ended after forking.
[Oct 09 17:32:37:1633818757.673028:4:info] Starting cron with normal ajax at URL https://www.speechlanguagefeeding.com/wp-admin/admin-ajax.php?action=wordfence_doScan&isFork=0&scanMode=custom&cronKey=bbdab7395b9572c328de6637afb78f95&signature=e7f65ad3c0eb5302f50bfd2465a07d1d1f53c638c487b4b26dacbec7a55af5b3
[Oct 09 17:32:37:1633818757.671723:4:info] Test result of scan start URL fetch: array ( 'headers' => Requests_Utility_CaseInsensitiveDictionary::__set_state(array( 'data' => array ( 'date' => 'Sat, 09 Oct 2021 22:32:35 GMT', 'server' => 'Apache', 'x-robots-tag' => 'noindex', 'x-content-type-options' => 'nosniff', 'expires' => 'Wed, 11 Jan 1984 05:00:00 GMT', 'cache-control' => 'no-cache, must-revalidate, max-age=0', 'x-frame-options' => 'SAMEORIGIN', 'referrer-policy' => 'strict-origin-when-cross-origin', 'set-cookie' => 'ppwp_wp_session=047853ac7c6ce6fa7069ecfcded88d2d%7C%7C1633820555%7C%7C1633820195; expires=Sat, 09-Oct-2021 23:02:35 GMT; Max-Age=1800; path=/', 'content-type' => 'text/html; charset=UTF-8', ), )), 'body' => 'WFSCANTESTOK', 'response' => array ( 'code' => 200, 'message' => 'OK', ), 'cookies' => array ( 0 => WP_Http_Cookie::__set_state(array( 'name' => 'ppwp_wp_session', 'value' => '04785
[Oct 09 17:32:35:1633818755.891774:4:info] getMaxExecutionTime() returning config value: 20
[Oct 09 17:32:35:1633818755.891577:4:info] Got value from wf config maxExecutionTime: 20
[Oct 09 17:32:35:1633818755.891128:4:info] Entering start scan routine
[Oct 09 17:32:35:1633818755.890201:4:info] Ajax request received to start scan.
[Oct 09 17:32:32:1633818752.412430:10:info] SUM_KILLED:A request was received to stop the previous scan.
[Oct 09 17:32:32:1633818752.411707:1:info] Scan stop request received.
[Oct 09 17:30:47:1633818647.262807:4:info] Scan process ended after forking.
[Oct 09 17:30:46:1633818646.258997:4:info] Starting cron with normal ajax at URL https://www.speechlanguagefeeding.com/wp-admin/admin-ajax.php?action=wordfence_doScan&isFork=0&scanMode=custom&cronKey=bf90af1b6f318155eca7a600775e88e1&signature=dfaefeb286f3d519f41e71675568dc5f57d89bab05ea7bd9125aa5eba7e3e88d
[Oct 09 17:30:46:1633818646.257716:4:info] Test result of scan start URL fetch: array ( 'headers' => Requests_Utility_CaseInsensitiveDictionary::__set_state(array( 'data' => array ( 'date' => 'Sat, 09 Oct 2021 22:30:43 GMT', 'server' => 'Apache', 'x-robots-tag' => 'noindex', 'x-content-type-options' => 'nosniff', 'expires' => 'Wed, 11 Jan 1984 05:00:00 GMT', 'cache-control' => 'no-cache, must-revalidate, max-age=0', 'x-frame-options' => 'SAMEORIGIN', 'referrer-policy' => 'strict-origin-when-cross-origin', 'set-cookie' => 'ppwp_wp_session=9dffc0e4adbd270b2466a3422ae8e46c%7C%7C1633820444%7C%7C1633820084; expires=Sat, 09-Oct-2021 23:00:44 GMT; Max-Age=1800; path=/', 'content-type' => 'text/html; charset=UTF-8', ), )), 'body' => 'WFSCANTESTOK', 'response' => array ( 'code' => 200, 'message' => 'OK', ), 'cookies' => array ( 0 => WP_Http_Cookie::__set_state(array( 'name' => 'ppwp_wp_session', 'value' => '9dffc
[Oct 09 17:30:44:1633818644.508782:4:info] getMaxExecutionTime() returning config value: 20
[Oct 09 17:30:44:1633818644.508386:4:info] Got value from wf config maxExecutionTime: 20
[Oct 09 17:30:44:1633818644.507663:4:info] Entering start scan routine
[Oct 09 17:30:44:1633818644.506504:4:info] Ajax request received to start scan.
[Oct 09 17:30:42:1633818642.658494:10:info] SUM_KILLED:A request was received to stop the previous scan.
[Oct 09 17:30:42:1633818642.658033:1:info] Scan stop request received.
[Oct 09 17:27:28:1633818448.119156:4:info] Scan process ended after forking.

Any ideas?

Thanks in advance.