Akonadi crashing

Hi   I have previously sent this to the kdepim-users list.   I've had increasing issues with this to the point Akonadi does not load any more (only on one of my logins)   I'm with BTinternet and increasingly over the last few weeks, it occasionally reports a corruption with the BT internet IMAP but works when you reload kmail. It now doesn't load at all and keeps core dumping. Can anyone tell from this journaltctl log what the problem is?   https://paste.opensuse.org/pastes/5bf017867d16 <https://paste.opensuse.org/pastes/5bf017867d16>     I think i'm going have to create a new user.   thanks   regards    Ian