Ошибка JAVA?

[Gamlet]

[11:06:36]  INFO =================================================
[11:06:36]  INFO Revision: ................ 722:724M
[11:06:36]  INFO Build date: .............. 2021.03.23 22:28
[11:06:36]  INFO Compiler version: ........ 1.8.0_241-b07 (Oracle Corporation)
[11:06:36]  INFO =================================================
Exception in thread "main" java.lang.NumberFormatException: For input string: ""
    at java.lang.NumberFormatException.forInputString(NumberFormatException.java:65)
    at java.lang.Integer.parseInt(Integer.java:592)
    at java.lang.Integer.parseInt(Integer.java:615)
    at l2.commons.configuration.ExProperties.getProperty(ExProperties.java:109)
    at l2.gameserver.Config.loadAltSettings(Config.java:2331)
    at l2.gameserver.Config.load(Config.java:3676)
    at l2.gameserver.GameServer.<init>(GameServer.java:718)
    at l2.gameserver.GameServer.main(GameServer.java:992)

 

[OurLastnight]

[11:06:36]  INFO =================================================
[11:06:36]  INFO Revision: ................ 722:724M
[11:06:36]  INFO Build date: .............. 2021.03.23 22:28
[11:06:36]  INFO Compiler version: ........ 1.8.0_241-b07 (Oracle Corporation)
[11:06:36]  INFO =================================================
Exception in thread "main" java.lang.NumberFormatException: For input string: ""
    at java.lang.NumberFormatException.forInputString(NumberFormatException.java:65)
    at java.lang.Integer.parseInt(Integer.java:592)
    at java.lang.Integer.parseInt(Integer.java:615)
    at l2.commons.configuration.ExProperties.getProperty(ExProperties.java:109)
    at l2.gameserver.Config.loadAltSettings(Config.java:2331)
    at l2.gameserver.Config.load(Config.java:3676)
    at l2.gameserver.GameServer.<init>(GameServer.java:718)
    at l2.gameserver.GameServer.main(GameServer.java:992)

В конфиге altsettings оставил пустое значение напротив конфига.