This is the error.log from cups
E [24/Sep/2021:17:02:05 +0200] Unknown directive JobPrivateAccess on line 122 of /etc/cups/cupsd.conf.
E [24/Sep/2021:17:02:05 +0200] Unknown directive JobPrivateValues on line 123 of /etc/cups/cupsd.conf.
E [24/Sep/2021:17:02:05 +0200] Unknown directive SubscriptionPrivateAccess on line 124 of /etc/cups/cupsd.conf.
E [24/Sep/2021:17:02:05 +0200] Unknown directive SubscriptionPrivateValues on line 125 of /etc/cups/cupsd.conf.
W [24/Sep/2021:17:02:06 +0200] CreateProfile failed: org.freedesktop.ColorManager.Profile.Internal:failed to register object: An object is already exported for the interface org.freedesktop.ColorManager.Profile at /org/freedesktop/ColorManager/profiles/Brother_DCP_135C_Gray__
W [24/Sep/2021:17:02:06 +0200] CreateProfile failed: org.freedesktop.ColorManager.Profile.Internal:failed to register object: An object is already exported for the interface org.freedesktop.ColorManager.Profile at /org/freedesktop/ColorManager/profiles/Brother_DCP_135C_RGB__
W [24/Sep/2021:17:02:06 +0200] CreateDevice failed: org.freedesktop.ColorManager.Device.Internal:failed to register object: An object is already exported for the interface org.freedesktop.ColorManager.Device at /org/freedesktop/ColorManager/devices/cups_Brother_DCP_135C