Excel vba通过“if error，then”规则解决vba错误

First of all, thanks for all the answers I have gotten on my previous questions, you really helped me out. The excel has evolved and now I'm ready to open different excel sheets in the background and print out different sheets on different printers. However, I'm working on a network that changes it's settings (which appear to change randomly).First of all, thanks for all the answers I have