I have exactly the same problem (on xubuntu 16.04 32bits).
On LOTW download :
NOT logged
Error: -2
Error:
Error: ssl_openssl

Here is my debug output :

**** DEBUG LEVEL 1 ****

SSL libraries:

Loading libmysqlclient: /usr/lib/i386-linux-gnu/libmysqlclient.so.20.3.7
**************************
MySQL version: 5.7
**************************
**********************************
MySQL version assigned: 5.7
**********************************
Loaded 111576 LoTW users
Loaded 110897 eQSL users
Loaded 44106 SCP calls
*
User home directory: /home/philippe/
Program home directory: /home/philippe/.config/cqrlog/
Data directory: /home/philippe/.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: 5.7
*
56 us states loaded
/usr/sbin/mysqld --defaults-file=/home/philippe/.config/cqrlog/database/mysql.cnf --datadir=/home/philippe/.config/cqrlog/database/ --socket=/home/philippe/.config/cqrlog/database/sock --port=64000
Trying to connect to database
TMySQL57Connection : Server connect failed.
Trying:1
select * from tables where table_schema = 'cqrlog_common'

SELECT log_nr,log_name FROM cqrlog_common.log_list order by log_nr

use cqrlog001

use cqrlog001

use cqrlog001

use cqrlog001

use cqrlog001

SELECT * FROM cqrlog_config

select * from db_version

select * from cqrlog_common.db_version

SELECT * FROM cqrlog_common.dxcc_ref ORDER BY ADIF

SELECT * FROM cqrlog_common.dxcc_ref ORDER BY ADIF

Settings:
-----------------------------------------------------
RigCtldPath:/usr/bin/rigctld
RigCtldArgs:-m 231 -r /dev/ts590 -t 4532 -s 115200 --set-conf=data_bits=8,stop_bits=2,serial_parity=None
RunRigCtld: FALSE
RigDevice: /dev/ts590
RigCtldPort:4532
RigCtldHost:localhost
RigPoll: 500
RigSendCWR: FALSE
RigId: 231

rigctld started!
Connected to localhost:4532

Settings:
-----------------------------------------------------
RotCtldPath:/usr/bin/rotctld
RotCtldArgs:-m 602 -r /dev/ttyACM0 -t 4500 -s 57600 --set-conf=data_bits=8,stop_bits=1,serial_parity=None,serial_handshake=None,dtr_state=Unset,rts_state=Unset
RunRotCtld: FALSE
RotDevice: /dev/ttyACM0
RotCtldPort:4500
RotCtldHost:localhost
RotPoll: 1000
RotId: 602

rotctld started!
Connected to localhost:4500
select id,freq,mode,bandwidth from freqmem order by id

Sending: fmv

CW init
SELECT * FROM profiles WHERE visible > 0 ORDER BY nr

SELECT * FROM profiles WHERE nr = -1

SELECT * FROM profiles WHERE visible > 0 ORDER BY nr

SELECT * FROM profiles WHERE nr = -1

select * from view_cqrlog_main_by_qsodate where qsodate >= '2017-TMP:

73,
Philippe

Sorry to report but same problem here after upgrade.

73 Ian