No help is needed as I bypassed the error by not checking the spammer status.

Error: Call to undefined method IPS\core\extensions\core\MemberFilter\Spammer::matches() in /var/www/vhosts/eastmidlandsstargazers.org.uk/httpdocs/system/Member/GroupPromotion.php:313
Stack trace:
#0 /var/www/vhosts/eastmidlandsstargazers.org.uk/httpdocs/system/Member/Member.php(4210): IPS\Member\_GroupPromotion->matches()
#1 /var/www/vhosts/eastmidlandsstargazers.org.uk/httpdocs/system/Member/Member.php(374): IPS\_Member->checkGroupPromotion()
#2 /var/www/vhosts/eastmidlandsstargazers.org.uk/httpdocs/system/Member/Member.php(3309): IPS\_Member->save()
#3 /var/www/vhosts/eastmidlandsstargazers.org.uk/httpdocs/datastore/template_99_94a9d7649fb9cdbfc784d3516e61a717_global.php(8815): IPS\_Member->createMenu()
#4 /var/www/vhosts/eastmidlandsstargazers.org.uk/httpdocs/system/Theme/SandboxedTemplate.php(61): IPS\Theme\Cache\class_core_front_global->mobileNavBar()
#5 /var/www/vhosts/eastmidlandsstargazers.org.uk/httpdocs/datastore/template_99_94a9d7649fb9cdbfc784d3516e61a717_global.php(6593): IPS\Theme\_SandboxedTemplate->__call()
#6 /var/www/vhosts/eastmidlandsstargazers.org.uk/httpdocs/system/Theme/SandboxedTemplate.php(61): IPS\Theme\Cache\class_core_front_global->globalTemplate()
#7 /var/www/vhosts/eastmidlandsstargazers.org.uk/httpdocs/system/Output/Output.php(743): IPS\Theme\_SandboxedTemplate->__call()
#8 /var/www/vhosts/eastmidlandsstargazers.org.uk/httpdocs/init.php(1051): IPS\_Output->error()
#9 [internal function]: IPS\IPS::exceptionHandler()
#10 {main}

#0 /var/www/vhosts/eastmidlandsstargazers.org.uk/httpdocs/system/Theme/SandboxedTemplate.php(71): IPS\_Log::log()
#1 /var/www/vhosts/eastmidlandsstargazers.org.uk/httpdocs/datastore/template_99_94a9d7649fb9cdbfc784d3516e61a717_global.php(6593): IPS\Theme\_SandboxedTemplate->__call()
#2 /var/www/vhosts/eastmidlandsstargazers.org.uk/httpdocs/system/Theme/SandboxedTemplate.php(61): IPS\Theme\Cache\class_core_front_global->globalTemplate()
#3 /var/www/vhosts/eastmidlandsstargazers.org.uk/httpdocs/system/Output/Output.php(743): IPS\Theme\_SandboxedTemplate->__call()
#4 /var/www/vhosts/eastmidlandsstargazers.org.uk/httpdocs/init.php(1051): IPS\_Output->error()
#5 [internal function]: IPS\IPS::exceptionHandler()
#6 {main}

 

Further to the above, it's worth noting that for those users who triggered this issue, the site became completely unusable. They were met with errors about the theme being out of date. Clearing the locked task and disabling the spammer check resolved it.

Thank you for bringing this issue to our attention! I can confirm this should be further reviewed and I have logged an internal bug report for our development team to investigate and address as necessary, in a future maintenance release.

 

We have just issued a patch for this issue.