Failed to load resource: the server responded with a status of 500 ()
my data retrieval function work well and it returns the data successfully when i use the api endpoint. It was working well also in browser but suddenly i started to consistently getting this error. although i changed nothing in my code that was working well! Please help

i thought that it is a temporary problem because my code was working before i did not change anything in it. But it is a whole day now and still getting the error. tried clear chache of the browser and it did not work.