Game crash upon choosing gender.

[CaseCreature68]

In the intro after the player chooses a gender the game crashes and it happens for both boy and girl. What can I do to fix this? Thanks in advance
Error log:
[Pokémon Essentials version 19.1]
[Generation 8 Project v1.1.0]
[v19.1 Hotfixes 1.0.7]
[EBDX v1.2.5]

Exception: RuntimeError
Message: Script error in event 1 (coords 0,0), map 1 (Intro):
Exception: NoMethodError
Message: undefined method `player_B' for nil:NilClass

***Full script:
pbChangePlayer(1)


Backtrace:
136:Metadata:74:in `get_player'
337:Utilities:224:in `pbChangePlayer'
(eval): 1:in `execute_script'
033:Interpreter:137:in `eval'
033:Interpreter:137:in `execute_script'
034:Interpreter_Commands:1030:in `command_355'
034:Interpreter_Commands:116:in `execute_command'
033:Interpreter:127:in `block in update'
033:Interpreter:87:in `loop'
033:Interpreter:87:in `update'


Backtrace:
033:Interpreter:189:in `rescue in execute_script'
033:Interpreter:135:in `execute_script'
034:Interpreter_Commands:1030:in `command_355'
034:Interpreter_Commands:116:in `execute_command'
033:Interpreter:127:in `block in update'
033:Interpreter:87:in `loop'
033:Interpreter:87:in `update'
032: Scene_Map:157:in `block in update'
032: Scene_Map:155:in `loop'
032: Scene_Map:155:in `update'