@alinabaraz33
QuickBooks Error H505 is a common issue that occurs when QuickBooks is unable to establish a connection with the company file on another computer. This error usually indicates a problem with the network setup or firewall settings. To resolve this issue, you can try a few solutions such as checking network connectivity, configuring firewall settings, and creating a new folder for the company file. If the problem persists, it is recommended to seek technical support or consult the QuickBooks community for further assistance.