Aknonadi Crashing

Hi
 
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