A short excerpt from the log
2020-05-01 18:29:01: WARNING[Server]: [advtrains]LuaAutomation ATC interface rail at (-567,1,-490) : LUA Error: (load):246: Train 15089579084380.913221 has passed rail at speed of 11.399999774992
2020-05-01 18:29:02: WARNING[Server]: [advtrains]LuaAutomation ATC interface rail at (-546,9,-235) : LUA Error: (load):246: Train 634675 has passed rail at speed of 15
2020-05-01 18:29:03: WARNING[Server]: [advtrains]LuaAutomation ATC interface rail at (-877,-9,708) : LUA Error: (load):246: Train 151561867615026.881533 has passed rail at speed of 15
2020-05-01 18:29:03: WARNING[Server]: [advtrains]LuaAutomation ATC interface rail at (13,-2,5) : LUA Error: (load):348: attempt to index field 'main' (a boolean value)
2020-05-01 18:29:06: WARNING[Server]: [advtrains]LuaAutomation ATC interface rail at (-253,5,-911) : LUA Error: (load):348: attempt to index field 'main' (a number value)
2020-05-01 18:29:09: WARNING[Server]: [advtrains]LuaAutomation ATC interface rail at (-13,20,43) : LUA Error: (load):231: Train has disappeared!
2020-05-01 18:29:09: WARNING[Server]: [advtrains]LuaAutomation ATC interface rail at (-24,-2,8) : LUA Error: (load):231: Train has disappeared!
2020-05-01 18:29:11: WARNING[Server]: [advtrains]LuaAutomation ATC interface rail at (-128,3,-295) : LUA Error: (load):348: attempt to index field 'main' (a number value)
2020-05-01 18:29:19: WARNING[Server]: [advtrains]LuaAutomation ATC interface rail at (572,14,1011) : LUA Error: (load):2: attempt to index field 'main' (a number value)
2020-05-01 18:29:21: ACTION[Server]: [advtrains]Train 262153 get_occupations requested off-track -1
2020-05-01 18:29:21: ACTION[Server]: [advtrains]Train 262153 get_occupations requested off-track -3
2020-05-01 18:29:21: WARNING[Server]: [advtrains]ATC rail at (-496,-5,-784) : Sending command failed: There's no train at this position. This seems to be a bug. 2020-05-01 18:29:21: ACTION[Server]: [advtrains]Train 866716 get_occupations requested off-track -1
2020-05-01 18:29:21: ACTION[Server]: [advtrains]Train 866716 get_occupations requested off-track -4
2020-05-01 18:29:21: WARNING[Server]: [advtrains]ATC rail at (-266,5,6) : Sending command failed: There's no train at this position. This seems to be a bug.
2020-05-01 18:29:21: WARNING[Server]: [advtrains]ATC rail at (-547,11,1316) : Sending command failed: There's no train at this position. This seems to be a bug.
2020-05-01 18:30:45: WARNING[Server]: [advtrains]900720 overrun LZB 0 restriction (red signal) (2406,19,-2418)
Resolved after local and server testing and fixing. Nouw merged in master.