Blackfyre Fatal Error

My website is constantly going down and breaking for 30 minutes at a time. It’s breaking so bad that I recieve e-mails from WordPress stating Blackfyre has caused a fatal error and they notify me. I am running the following:

WordPress version 5.9.2
Current theme: BlackFyre (version 2.5.8)
Current plugin: Blackfyre types (version 1.8)
PHP version 8.1.2

Error Details
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An error of type E_ERROR was caused in line 184 of the file /home/ss7bg450o5z3/public_html/wp-content/plugins/blackfyre_custom_post_types/slider/acf-repeater/views/field.php. Error message: Uncaught TypeError: Unsupported operand types: string + int in /home/ss7bg450o5z3/public_html/wp-content/plugins/blackfyre_custom_post_types/slider/acf-repeater/views/field.php:184

Then there is additional details provided by the stack trace. But this is a on-going, multiple times a day issue and has only occurred when utilizing this theme.

Any assistance would be greatly appreciated.