I just clicked on Check data for imported file I have inserted
It keeps on loading there is in infinite Please wait
and sometimes shows
500 Internal Server Error The server encountered an internal error or misconfiguration and was unable to complete your request. Please contact the server administrator at firstname.lastname@example.org to inform them of the time this error occurred, and the actions you performed just before this error. More information about this error may be available in the server error log.
My value for phpinfo is attached