Run time error 20

Hello Everyone
my server problem:
crashdetect plugin somtimes print this debug error in server console and always when somone tries to join

Code:

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[debug] Run time error 20: "Invalid index parameter (bad entry point)"

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Server Log:

Code:

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[connection] 127.0.0.1:52575 requests connection cookie.
[connection] incoming connection: 127.0.0.1:52575 id: 0
[debug] Run time error 20: "Invalid index parameter (bad entry point)"
[join] Test has joined the server (0:127.0.0.1)

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Note: I already have main() function in my gamemode.
i searched about this tun time error and everyone said add "main" to your game mode but i have it.

thanks in advance