Even after being a top accounting software, at times QuickBooks faces issues that affect the business operations of an organization. One such common error that the user faces is QuickBooks Code Error 102. The error occurs mainly when there are some technical errors on the website or if it is under maintenance. A server issue related to data transfer between the Bank’s website and QuickBooks can be another reason for QuickBooks Online Error 102. Symptoms of QuickBooks Error 102 The user may face program lock-ups. The speed and performance of the PC get slow. Your system crashes frequently. The screen gets blue in color. You may also face instant shut down or startup of the software. Installation errors may also arise.