Hi Peter,
I didnāt have any trouble today. One of my accounts that doesnāt have open banking frequently gives me a technical error, but if I go back to it later it usually refreshes. If it hasnāt resolved since you posted this and you havenāt already, try logging out and/or rebooting your device. Sometimes that works.
~Rebecca
Hi @peter.maresh, glad to see you in the Tiller Community. Thank you @Rebecca.S for sharing how your spreadsheet is working. I also did not have any issues with my Tiller spreadsheet today, however, I did try to copy over a sheet from one Google Sheets spreadsheet to another and Google Sheets was giving me an error. I doubt it is related, but maybe Google was doing an update. Is it working again?
-Alice
Tiller Evangelist
Thanks for checking! Iām still getting the error, so I guess it is specific to my account. Iāll have to contact support directly I guess. This happens for refreshing existing accounts, but also for trying to add a new one. My data is still going into the sheet though, so stuff is still working. Just canāt do any kind of account maintenance.
Hi @peter.maresh, sorry for the delay in following up. Was at the Google Cloud NEXT conference with limited wifi. Were you able to get in contact with the customer success team?
-Alice
Tiller Evangelist
Thanks for checking in! I went back and forth a bit with support. I had some intermittent luck with a private browsing session, but it seemed like i could only do one thing in one session, and then I would get the same behavior. For example, i would be able to refresh one account, or add one account (at least to see the institution selection form), and then the second time Iād try it it would fail, and Iād have to start a new private session from scratch.
Nothing from my regular browser session would work.
Then thanks to your prompt, I was trying today and everything seems back to normal. ĀÆ_(ć)_/ĀÆ
@peter.maresh I am so happy to hear that the issue was resolved.
I personally am a Google Developer Expert for Google Workspace and I feel that when I try to fix one thing in my code I end up breaking 5 things 
or I donāt touch my code and then all of a sudden buttons donāt work. How did that happen? The Internet is haunted I think sometimes.
Glad that āunplugging it and plugging it back inā solved the issue. I wish we had an answer on why the Internet was hiccuping to prevent it happening again. But, again, glad it is at least resolved.
Thank you so much for being part of the community!
-Alice
Tiller Evangelist