Fatal error: Uncaught Error: Cannot call abstract method JsonSerializable::jsonSerialize() in /in/6EPbW:5
Stack trace:
#0 {main}
thrown in /in/6EPbW on line 5
Process exited with code 255.
Fatal error: Uncaught Error: Non-static method JsonSerializable::jsonSerialize() cannot be called statically in /in/6EPbW:5
Stack trace:
#0 {main}
thrown in /in/6EPbW on line 5
Process exited with code 255.