Trados Studioi 2024. Why do I still get 'Maximum allowed activations' after I've deleted all devices under "Deviecs and usage" and it still won't open.

Trados Studioi 2024. Why do I still get 'Maximum allowed activations' after I've deleted all devices under "Deviecs and usage" and it still won't open.

Bill Baston We will be pleased to help you with this problem so have logged a support case on your behalf. We do prioritise customers who have a support contract so please keep in mind it could take up to 48 hours, especially over a weekend, but rest assured we will contact you as soon as we can. You will be contacted at the email address used for this Community. Support Case Id : CS0047599.
Anca Stoian | RWS Group
Bill Baston We will be pleased to help you with this problem so have logged a support case on your behalf. We do prioritise customers who have a support contract so please keep in mind it could take up to 48 hours, especially over a weekend, but rest assured we will contact you as soon as we can. You will be contacted at the email address used for this Community. Support Case Id : CS0047599.
Anca Stoian | RWS Group
Thank you for your reply. I would appreciate some quick support as I have two RWS deadlines to meet in the next few days and would not like to miss them through no fault of my own.
Hello Bill Baston
Thank you for your feedback and I am sorry for this situation.
We've checked your specific account based on the opened case, and the last time the error was encountered for your account was 1h and 30 minutes ago, arround 1:16 UTC - London time.
Let me know if you have tried using Trados Studio with the subscription in the last 30 minutes.
Also please check your email inbox for the messages from our Support system.
Kind regards,
Radu
Thanks for your help. This now seems to be working, but, as a general point, I sometimes get this error message although I only ever use Trados on one machine. I can normally fix it (until today!) by deleting devices, but why should I receive this message in the first place as one user on one machine? Is there any way to prevent this from happening repeatedly?