Need to urgently upload 25K inventory file (ready for import) into Magento 2.2

I need someone to urgently upload a 25K inventory file in CSV format into my Magento 2.2 website. The inventory file contains all necessary information for product listings. However, we are currently facing a "General system exception happened" error when trying to upload the file. If I try to upload 1 item on CSV file by itself, it will go thru successfully. Therefore, I require someone who can troubleshoot and fix this issue. The ideal candidate should have experience with Magento 2.2 and be proficient in troubleshooting errors related to file uploads. This needs to be done TONIGHT/within 12 hours. Please do not bid if you are not able to do this within the time frame.