Invitaton Codes not creating 10,000 codes

Hi,

This is a very good plugin but when I start generating codes with 16 digits and almost 10,000 at a time. It worked 2 times but not after that an error came “Gateway Timeout” so I approached the hosting company they said there is a script which takes a lot of time due to which server kills that and this error occurs.

Please help me out in this.

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