Hi @pgr 
Thanks a bunch for your reply. It is very appreciated. 
I have allocated 1024 MB to the system which from my understanding should be more than sufficient for most daily tasks, right? (Please do correct me if I am wrong).
I did copy paste your SQL command from your website as instructed, but MariaDB pukes all over it. See the gif screenshot below:

I added a part of the latest logfile to pastebin:
I can SuiteCRM is complaining over some Google service, (google/apiclient-services/autoload.php). It is a bit weird because as far as I know we haven’t added anything that should be speaking with Google.
some of the errors I found in the error log (The Pastebin):
[13-Apr-2022 00:15:04 UTC] PHP Fatal error: Uncaught ArgumentCountError: Too few arguments to function SugarWebServiceImplv4::login(), 0 passed in /public_html/service/core/REST/SugarRest.php on line 93 and at least 1 expected in /public_html/service/v4/SugarWebServiceImplv4Stack trace:
–AND–
#0 /public_html/service/core/REST/SugarRest.php(93): SugarWebServiceImplv4->login()
#1 /public_html/service/core/SugarRestService.php(136): SugarRest->serve()
#2 /public_html/service/core/webservice.php(70): SugarRestService->serve()
#3 /public_html/service/v4/rest.php(56): require_once('/home/tamacloud...')
#4 {main}
thrown in /public_html/service/v4/SugarWebServiceImplv4.php on line 73
–AND–
Stack trace:
#0 /public_html/data/Relationships/One2MBeanRelationship.php(161): SugarRelationship->callBeforeDelete(false, Object(Lead))
#1 /public_html/data/Relationships/SugarRelationship.php(164): One2MBeanRelationship->remove(false, Object(Lead))
#2 /public_html/data/Link2.php(636): SugarRelationship->removeAll(Object(Link2))
#3 /public_html/data/SugarBean.php(5475): Link2->delete('38daff49-4bf8-5...')
#4 /public_html/data/SugarBean.php(5455): SugarBean->delete_linked('38daff49-4bf8-5...')
#5 /public_html/data/SugarBean.php(5281): Su in /public_html/data/Relationships/SugarRelationship.php on line 420
[13-Apr-2022 23:16:52 UTC] PHP Warning: Class 'Google_Service' not found in /public_html/vendor/google/apiclient-services/autoload.php on line 21
[13-Apr-2022 23:16:52 UTC] PHP Warning: Class 'Google_Service_Resource' not found in /public_html/vendor/google/apiclient-services/autoload.php on line 21
[13-Apr-2022 23:16:52 UTC] PHP Warning: Class 'Google_Model' not found in /public_html/vendor/google/apiclient-services/autoload.php on line 21
[13-Apr-2022 23:16:52 UTC] PHP Warning: Class 'Google_Collection' not found in /public_html/vendor/google/apiclient-services/autoload.php on line 21
[13-Apr-2022 23:16:52 UTC] PHP Warning: get_class() expects parameter 1 to be object, bool given in /public_html/data/Relationships/One2MBeanRelationship.php on line 195
[13-Apr-2022 23:16:52 UTC] PHP Fatal error: Uncaught Error: Call to a member function call_custom_logic() on bool in /public_html/data/Relationships/SugarRelationship.php:420
Stack trace:
#0 /public_html/data/Relationships/One2MBeanRelationship.php(161): SugarRelationship->callBeforeDelete(false, Object(Lead))
#1 /public_html/data/Relationships/SugarRelationship.php(164): One2MBeanRelationship->remove(false, Object(Lead))
#2 /public_html/data/Link2.php(636): SugarRelationship->removeAll(Object(Link2))
#3 /public_html/data/SugarBean.php(5475): Link2->delete('38daff49-4bf8-5...')
#4 /public_html/data/SugarBean.php(5455): SugarBean->delete_linked('38daff49-4bf8-5...')
#5 /public_html/data/SugarBean.php(5281): Su in /public_html/data/Relationships/SugarRelationship.php on line 420
[13-Apr-2022 23:16:58 UTC] PHP Warning: Class 'Google_Service' not found in /public_html/vendor/google/apiclient-services/autoload.php on line 21
[13-Apr-2022 23:16:58 UTC] PHP Warning: Class 'Google_Service_Resource' not found in /public_html/vendor/google/apiclient-services/autoload.php on line 21
[13-Apr-2022 23:16:58 UTC] PHP Warning: Class 'Google_Model' not found in /public_html/vendor/google/apiclient-services/autoload.php on line 21
[13-Apr-2022 23:16:58 UTC] PHP Warning: Class 'Google_Collection' not found in /public_html/vendor/google/apiclient-services/autoload.php on line 21
[13-Apr-2022 23:16:58 UTC] PHP Warning: get_class() expects parameter 1 to be object, bool given in /public_html/data/Relationships/One2MBeanRelationship.php on line 195
[13-Apr-2022 23:16:59 UTC] PHP Fatal error: Uncaught Error: Call to a member function call_custom_logic() on bool in /public_html/data/Relationships/SugarRelationship.php:420
Stack trace:
#0 /public_html/data/Relationships/One2MBeanRelationship.php(161): SugarRelationship->callBeforeDelete(false, Object(Lead))
#1 /public_html/data/Relationships/SugarRelationship.php(164): One2MBeanRelationship->remove(false, Object(Lead))
#2 /public_html/data/Link2.php(636): SugarRelationship->removeAll(Object(Link2))
#3 /public_html/data/SugarBean.php(5475): Link2->delete('38daff49-4bf8-5...')
#4 /public_html/data/SugarBean.php(5455): SugarBean->delete_linked('38daff49-4bf8-5...')
#5 /public_html/data/SugarBean.php(5281): Su in /public_html/data/Relationships/SugarRelationship.php on line 420
Not really sure which error that belongs to the bulk deleting and the 500 error. On the flip side the google service issue spams the system too so if you know how to get rid of it, it would be very nice too.
Thanks in advance. 
Kind regards
PowerQuest