[Error] Eevee to Espepion Error

Hello again, when Eevee tries to evolve to Espeon I get this error:

[Pokémon Essentials version 19.1]
[v19.1 Hotfixes 1.0.3]
[EBDX v1.2]

Exception: ArgumentError
Message: comparison of Symbol with 0 failed

Backtrace:
110:Evolution:324:in `>'
110:Evolution:324:in `block (2 levels) in <main>'
110:Evolution:324:in `any?'
110:Evolution:324:in `block in <main>'
110:Evolution:32:in `call_level_up'
246:Pokemon:917:in `block in check_evolution_on_level_up'
246:Pokemon:961:in `block in check_evolution_internal'
246:Pokemon:959:in `each'
246:Pokemon:959:in `check_evolution_internal'
246:Pokemon:916:in `check_evolution_on_level_up'

I tried to look for this error in other posts, but I didn't find an proper solution for this. Any help is appreciate.

Solved, the last Hotfix 1.0.6 fixed this issue