Qlik Sense Error 400

[vpab0b123]

Hi, I am having issues logging to the Qlik Sense QMC and getting the Error 400. I do have Admin access so

is there anything that can be done at the backend since I can't access the QMC to add or remove users?

[Ricardo_Gerhard]

Is this a new installation? What version?

If it´s a new installation, should be the server name configured during the installation or the folder permissions for cluster settings. Try to check this.

[vpab0b123]

No, it's not new installation. I am new to Qlik sense. I was able to access it till Monday. I was adding new Ad group to bring in new users. looks like I made some mistake in the script. This is Qlik Sense version 3.1

[Ricardo_Gerhard]

Had you tried to restart the server?

Is it a virtual machine? Do you have a vmdk copy to perform a fast recovery environment?