Hi there and welcome
Can you tell me please which version of windows or Mac you did this on?
Can you go to www.teamviewer.com
Click on Download in the middle of the page
Download and install the program and give me the ID and Password ***** please so I can connect
Do not close the program but leave it open else I will not be able to connect
it says the password ***** ***** can you double check it please?
It says it is invalid, close Teamviewer, open it and give me the new password *****
do this instead
Click this link, click I agree, and run the file please