OK, so I downloaded latest time-line picker files from git and replaced it, reconfigured and still got same problem
==> /var/log/openhab2/events.log <==
2020-03-04 09:22:13.304 [ome.event.ItemCommandEvent] - Item âTransferItem1â received command {â1â:{âkeyâ:â17â,âvalueâ:[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]},â99â:âOFF,ONâ,â100â:{âeventâ:false,âlastItemStateâ:-1,âinactiveâ:false}}
2020-03-04 09:22:13.320 [vent.ItemStateChangedEvent] - TransferItem1 changed from NULL to {â1â:{âkeyâ:â17â,âvalueâ:[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]},â99â:âOFF,ONâ,â100â:{âeventâ:false,âlastItemStateâ:-1,âinactiveâ:false}}
==> /var/log/openhab2/openhab.log <==
2020-03-04 09:22:13.365 [ERROR] [se.smarthome.model.script.timepicker] - error in transfer string
2020-03-04 09:22:20.089 [ERROR] [se.smarthome.model.script.timepicker] - error in transfer string