Error

[18:47:31 INFO]: [Skript] Loading variables...
[18:47:31 INFO]: [Skript] Loaded 1 variables in 0.0 seconds
[18:47:31 ERROR]: [Skript] Can't compare 'player's balance' with an integer (gui.sk, line 29: if player's balance is bigger than 999:')
[18:47:31 ERROR]: [Skript] 'else' has to be placed just after an 'if' or 'else if' section (gui.sk, line 33: else:')
[18:47:31 ERROR]: [Skript] Can't compare 'player's balance' with an integer (gui.sk, line 36: if player's balance is bigger than 499:')
[18:47:31 ERROR]: [Skript] 'else' has to be placed just after an 'if' or 'else if' section (gui.sk, line 40: else:')
[18:47:33 ERROR]: [Skript] Can't compare a player with 'in world "warzone"' (warzone.sk, line 2: if player is in world "warzone":')
[18:47:33 INFO]: [Skript] Loaded 5 scripts with a total of 22 triggers and 6 commands in 2.23 seconds
[18:47:33 INFO]: [Skript] Finished loading.