Hey,
For the past 24 hours I haven't been able to save any changes I am making to my apps. Can somebody please look into this and tell me what's wrong? Is this a bug from Rettols site? I saw someone posted a similar post a few days ago at App component and query changes not saving, so I am suspecting it might be related.
Hi @Molly, we looked into your account and yes, the reason why you can't save any changes is because your plan expired a day before you posted this question. You could downgrade to Free Retool or start a subscription with Business if you liked the features of that plan. 
Here is our pricing doc to evaluate which plan best fits your needs.