json error

[C4PT41ND34DP00L]

I was trying to check out your Subzone application but when I run it I get the below output any idea I am using python 3.7

json_data:Error list indices must be integers or slices, not str
json_data:Error list indices must be integers or slices, not str
json_data:Error list indices must be integers or slices, not str

{!} There are 0 REGISTERED subdomains for this domain.

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INDEX:green SUBDOMAIN:red

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json_data:Error list indices must be integers or slices, not str

{!} There are 0 ACTIVE subdomains for this domain.

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INDEX:green DNS SERVER:white SUBDOMAIN:red IP_ADDR:blue

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json_data:Error list indices must be integers or slices, not str

[ncorbuk]

Hmmm this script always breaks every few months lol and I have to redo the code... I will look into it, thanks.