I got this mistake even though employing malloc() to allocate some memory to some struct * after expending some this debugging the code, I eventually used free() function to free the allotted memory and subsequently the mistake information gone :) df.columns = new in which new will be the list https://eduardovzwrl.ezblogz.com/68057470/a-simple-key-for-stack-ball-3d-gameplay-unveiled