I understand that not being able to use QuickBooks can be challenging. I want you to know that I appreciate your efforts in trying the reinstallation process, nbmcas.
Let's work together to overcome this obstacle and ensure you can use the QuickBooks Self-Employed (QBSE) app smoothly. If you're currently using a VPN to connect to the internet, I suggest turning it off. Performing this action resolves the problem of being unable to utilise the app.
Still, I like to ask if you receive an error. If so, please let me know the exact message so I can provide an accurate resolution related to that error.
I also recommend reading this article: QuickBooks Self-Employed Overview. This resource will provide you with valuable insights and information about the program.
Please feel free to ask me any additional questions you may have. I'll do my best to respond as promptly as possible. Stay safe.