Same issue here.
The system was live trading with no issue. 1.58 Friday logout correctly and thr llog file is growing fast!

[581: Fri 17-09-29 16:00] 1.1821/1.18251.1811/1.1815
[582: Fri 17-09-29 17:00] 1.1815/1.18161.1801/1.1804
[583: Fri 17-09-29 18:00] 1.1806/1.18131.1802/1.1806
[584: Fri 17-09-29 19:00] 1.1806/1.18261.1805/1.1816
Weekend on 29.09. 20:00
!Insufficient authorization to perform request.
!Insufficient authorization to perform request.
!Insufficient authorization to perform request.