When an I/O Error is encountered in Sage 50, it signifies that the software is unable to access the necessary data file. This error typically arises when the connection between a workstation and the database is interrupted. The potential causes for this interruption could be:

• A power outage
• Workstation disconnection from the network cable or router
• Unresponsiveness of the workstation, leading to a user-initiated reboot while Sage 50 was open
• Any other event that disrupts the connection from the workstation to the database location

In many instances, these issues can be rectified by restarting each computer that utilizes Sage 50 within your network. It is crucial to ensure that all users save their work prior to initiating the reboot.

If the problem persists after rebooting, an error message will indicate which file has been compromised. Typically, the affected files are JrnlHdr.dat, JrnlRow.dat, Vendor.dat, or Customer.dat.

If the I/O error persists, your remaining options are to either restore from a previous backup or utilize our Sage 50 Data Recovery Service for data repair.

Please note, restoring from an older backup may result in significant downtime due to the necessity of reentering transactions, balances, and updating maintenance records. This process can be time-consuming and may disrupt regular operations. It’s important to consider this factor when deciding on the best course of action.