Hi,
i update my Workstation with a fresh manjaro 17.0 OS. From the old manjaro OS, the hole home-folder moved to another Harddisk. On the new manjaro 17.0 i´ve install CQRLOG 2.0.4-1 and moved the CQRLOG-Folder back to the new Home-Folder. This procedure i have made several times in the past.
And now when i start the program the following messages appear:
Error during connection to database:
TMySQL56Connection: Server connect failed.

When i delete the Folder, the program starts normaly, but the QSO-List is of course, empty.

Here my mysql.err file

terribly wrong...
stack_bottom = 0x0 thread_stack 0x48400
/usr/sbin/mysqld(my_print_stacktrace+0x2e)[0x55d77b7a96ee]
/usr/sbin/mysqld(handle_fatal_signal+0x3bd)[0x55d77b2e934d]
/usr/lib/libpthread.so.0(+0x11fe0)[0x7ff4f1443fe0]
/usr/lib/libc.so.6(gsignal+0x110)[0x7ff4f0a26a10]
/usr/lib/libc.so.6(abort+0x17a)[0x7ff4f0a2813a]
/usr/sbin/mysqld(+0x96716b)[0x55d77b6be16b]
/usr/sbin/mysqld(+0x9be4cf)[0x55d77b7154cf]
/usr/sbin/mysqld(+0x9c7051)[0x55d77b71e051]
/usr/sbin/mysqld(+0x9a9294)[0x55d77b700294]
/usr/sbin/mysqld(+0x8ffed1)[0x55d77b656ed1]
/usr/sbin/mysqld(+0x823c8e)[0x55d77b57ac8e]
/usr/sbin/mysqld(_Z24ha_initialize_handlertonP13st_plugin_int+0x66)[0x55d77b2eb456]
/usr/sbin/mysqld(+0x418c38)[0x55d77b16fc38]
/usr/sbin/mysqld(_Z11plugin_initPiPPci+0x7fa)[0x55d77b17124a]
/usr/sbin/mysqld(+0x372e13)[0x55d77b0c9e13]
/usr/sbin/mysqld(_Z11mysqld_mainiPPc+0xa5a)[0x55d77b0ce03a]
/usr/lib/libc.so.6(__libc_start_main+0xf1)[0x7ff4f0a13511]
/usr/sbin/mysqld(_start+0x2a)[0x55d77b0c1aaa]
The manual page at http://dev.mysql.com/doc/mysql/en/crashing.html contains
information that should help you find out what is causing the crash.

and here the:

**** DEBUG LEVEL 1 ****

Loading libssl: /usr/lib64/libssl.so
Loading libcrypto: /usr/lib64/libcrypto.so.1.0.0
Loading libmysqlclient: /usr/lib64/libmysqlclient.so
**************************
MySQL version: 10.
**************************
**********************************
MySQL version assigned: 5.6
**********************************
Loaded 93636 LoTW users
Loaded 98114 eQSL users
Loaded 48268 SCP calls
*
User home directory: /home/fan/
Program home directory: /home/fan/.config/cqrlog/
Data directory: /home/fan/.config/cqrlog/database/
Memebers directory: /usr/share/cqrlog/members/
ZIP code directory: /usr/share/cqrlog/zipcodes/
Binary dir: /usr/bin/
Share dir: /usr/share/cqrlog/
TConnection to MySQL: 5.6
*
56 us states loaded
/usr/sbin/mysqld --defaults-file=/home/fan/.config/cqrlog/database/mysql.cnf --datadir=/home/fan/.config/cqrlog/database/ --socket=/home/fan/.config/cqrlog/database/sock --port=64000
Trying to connect to database
2017-03-21 22:32:52 139725917269696 [Note] /usr/sbin/mysqld (mysqld 10.1.21-MariaDB) starting as process 4955 ...
TMySQL56Connection : Server connect failed.
Trying:1
Trying to connect to database
TMySQL56Connection : Server connect failed.
Trying:2
Trying to connect to database
TMySQL56Connection : Server connect failed.
Trying:3
Trying to connect to database
TMySQL56Connection : Server connect failed.
Trying:4
Trying to connect to database
TMySQL56Connection : Server connect failed.
Trying:5
Trying to connect to database
TMySQL56Connection : Server connect failed.
Trying:6
Trying to connect to database
TMySQL56Connection : Server connect failed.
Trying:7
Trying to connect to database
TMySQL56Connection : Server connect failed.
Trying:8

What is going wrong...

Thanks Uwe