Hi,
Increase variables values ,
max_execution_time = 500
upload_max_filesize = 16M in your php.ini file and restart your server once.
Please replace the attached files in the hotelcommerce folder on your server also. Path of the files are as follows-
hotelcommerce/modules/hotelreservationsystem/classes/HotelBookingDetail.php
hotelcommerce/modules/hotelreservationsystem/classes/HotelBranchInformation.php
Please also visit https://qloapps.com/install-qloapps/ for installation help.
Try installing after these changes in the fresh Qloapps.0_1529746997205_InstallFiles.zip