SUMMARY
akonadi crash when launching KMail. KMail is now unusable.

akonadictl --version
akonadictl 5.10.0




STEPS TO REPRODUCE
1. Launch kmail
2. I get this erro message
3. Then in Kmail, I also get the error message :
The Email program encountered a fatal error and will terminate now.
The error was:
Could not create collection trash, resourceId: 2

If it helps 

OBSERVED RESULT
I get this error message, and kmail is never able to start because of this

EXPECTED RESULT
it should not crash ..

SOFTWARE/OS VERSIONS
Windows: 
MacOS: 
Linux/KDE Plasma: KDE Neon 18.04 
(available in About System)
KDE Plasma Version: 5.14.4
KDE Frameworks Version: 
Qt Version: 

ADDITIONAL INFORMATION

Application: akonadi_control (akonadi_control), signal: Aborted
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f0a476f2800 (LWP 3895))]

Thread 2 (Thread 0x7f0a3a325700 (LWP 3896)):
#0  0x00007f0a451e1bf9 in __GI___poll (fds=0x7f0a3a324ca8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f0a416ca747 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f0a416cc36a in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f0a3d2e5ed9 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007f0a45b0eadb in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f0a44eb56db in start_thread (arg=0x7f0a3a325700) at pthread_create.c:463
#6  0x00007f0a451ee88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f0a476f2800 (LWP 3895)):
[KCrash Handler]
#6  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51
#7  0x00007f0a4510d801 in __GI_abort () at abort.c:79
#8  0x00007f0a45adf5db in QMessageLogger::fatal(char const*, ...) const () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00005622673f7701 in akInit (appName=...) at ./src/shared/akdebug.cpp:218
#10 0x00005622673f5762 in AkApplicationBase::init (this=0x7ffc45bf9940) at ./src/shared/akapplication.cpp:62
#11 0x00005622673d6138 in AkApplicationImpl<QGuiApplication>::AkApplicationImpl (loggingCategory=..., argv=0x7ffc45bf9aa8, argc=@0x7ffc45bf98bc: 1, this=0x7ffc45bf9940) at ./src/shared/akapplication.h:83
#12 main (argc=<optimized out>, argv=0x7ffc45bf9aa8) at ./src/akonadicontrol/main.cpp:55