Facing an issue with including "PHPExcel" library.
I am using "PHPExcel" library in 8.5.2 version, it works only for 1-2 times after that giving an exception "Class 'PHPExcel_Shared_String' not found".
If I remove PHPExcel folder and added fresh copy in the directory, same scenario facing again (only works for 1-2 time)
I don't know what is the issue, maybe a problem in the configuration. if any knows about that please let me know the solution.