Issue in upload file: look at your PHP configuration
In php.ini file (using the Windows Manager, go to Settings > Configure servers > PHP), some functions can be modified to fit your needs.
Don’t forget to reboot the servers to validate the modifications.
Here are some example:
; Maximum allowed size for uploaded files.
upload_max_filesize = 80M
; Maximum number of files that can be uploaded via a single request
max_file_uploads = 100
; How many GET/POST/COOKIE input variables may be accepted # numbers of line in your uploaded file #
max_input_vars = 1000000
; Maximum size of POST data that PHP will accept.
; Its value may be 0 to disable the limit. It is ignored if POST data reading
; is disabled through enable_post_data_reading.
post_max_size = 80M