Ejabberd doesn't start anymore after update

Since the last update suddenly my ejabberd doesn’t start anymore. Anyone noticed something similar?
And yes, I did reinstall and such. And actually I didn’t change anything besides the update.
Any hints welcome.

tail -f /var/log/ejabberd/ejabberd.log throws:

2021-01-13 22:57:53.604 [notice] <0.119.0>@lager_file_backend:154 Changed loghwm of /var/log/ejabberd/ejabberd.log to 100
2021-01-13 22:57:53.893 [info] <0.105.0>@ejabberd_config:load:82 Loading configuration from /etc/ejabberd/ejabberd.yml
2021-01-13 22:57:53.952 [warning] <0.105.0>@ejabberd_config_transformer:warn_replaced_handler:542 Listening option 'web_admin' is deprecated and was automatically replaced by HTTP request handler: "/admin" -> ejabberd_web_admin. Please adjust your configuration file accordingly. Hint: run `ejabberdctl dump-config` command to view current configuration as it is seen by ejabberd.
2021-01-13 22:57:53.952 [warning] <0.105.0>@ejabberd_config_transformer:warn_removed_option:557 Option 'log_rotate_date' is deprecated and has no effect anymore. Please remove it from the configuration.
2021-01-13 22:57:57.090 [error] <0.232.0> Mnesia(ejabberd@localhost): ** ERROR ** (core dumped to file: "/var/lib/ejabberd/MnesiaCore.ejabberd@localhost_1610_575077_86777")
 ** FATAL ** {error,{"Cannot open dets table",last_activity,[{file,"/var/lib/ejabberd/last_activity.DAT"},{keypos,2},{repair,true},{type,set}],{not_a_dets_file,"/var/lib/ejabberd/last_activity.DAT"}}}
2021-01-13 22:58:07.089 [error] <0.232.0> Mnesia(ejabberd@localhost): ** ERROR ** mnesia_event got unexpected event: {'EXIT',<0.236.0>,killed}
2021-01-13 22:58:07.092 [critical] <0.219.0>@ejabberd:exit_or_halt:145 Failed to start Erlang application 'mnesia': {killed,{mnesia_app,start,[normal,[]]}}. This usually means that ejabberd or Erlang was compiled/installed incorrectly.
2021-01-13 22:58:07.090 [error] <0.229.0> CRASH REPORT Process <0.229.0> with 0 neighbours exited with reason: {killed,{mnesia_app,start,[normal,[]]}} in application_master:init/4 line 138
2021-01-13 22:58:07.093 [error] <0.232.0> CRASH REPORT Process mnesia_event with 0 neighbours exited with reason: killed in gen_event:terminate_server/4 line 354

tail -f /var/log/ejabberd/crash.log throws:

message_queue_len: 0
    messages: []
    links: []
    dictionary: []
    trap_exit: true
    status: running
    heap_size: 987
    stack_size: 27
    reductions: 1117
  neighbours:

tail -f /var/log/ejabberd/error.log throws:

2021-01-13 22:56:36.331 [error] <0.235.0> Mnesia(ejabberd@localhost): ** ERROR ** mnesia_event got unexpected event: {'EXIT',<0.239.0>,killed}
2021-01-13 22:56:36.331 [error] <0.235.0> CRASH REPORT Process mnesia_event with 0 neighbours exited with reason: killed in gen_event:terminate_server/4 line 354
2021-01-13 22:56:36.331 [error] <0.232.0> CRASH REPORT Process <0.232.0> with 0 neighbours exited with reason: {killed,{mnesia_app,start,[normal,[]]}} in application_master:init/4 line 138
2021-01-13 22:56:36.331 [critical] <0.222.0>@ejabberd:exit_or_halt:145 Failed to start Erlang application 'mnesia': {killed,{mnesia_app,start,[normal,[]]}}. This usually means that ejabberd or Erlang was compiled/installed incorrectly.
2021-01-13 22:57:57.090 [error] <0.232.0> Mnesia(ejabberd@localhost): ** ERROR ** (core dumped to file: "/var/lib/ejabberd/MnesiaCore.ejabberd@localhost_1610_575077_86777")
 ** FATAL ** {error,{"Cannot open dets table",last_activity,[{file,"/var/lib/ejabberd/last_activity.DAT"},{keypos,2},{repair,true},{type,set}],{not_a_dets_file,"/var/lib/ejabberd/last_activity.DAT"}}}
2021-01-13 22:58:07.089 [error] <0.232.0> Mnesia(ejabberd@localhost): ** ERROR ** mnesia_event got unexpected event: {'EXIT',<0.236.0>,killed}
2021-01-13 22:58:07.092 [critical] <0.219.0>@ejabberd:exit_or_halt:145 Failed to start Erlang application 'mnesia': {killed,{mnesia_app,start,[normal,[]]}}. This usually means that ejabberd or Erlang was compiled/installed incorrectly.
2021-01-13 22:58:07.090 [error] <0.229.0> CRASH REPORT Process <0.229.0> with 0 neighbours exited with reason: {killed,{mnesia_app,start,[normal,[]]}} in application_master:init/4 line 138
2021-01-13 22:58:07.093 [error] <0.232.0> CRASH REPORT Process mnesia_event with 0 neighbours exited with reason: killed in gen_event:terminate_server/4 line 354