I have been using InvoicePlane since Version 1.4. I really like it and would like to thank the developers for releasing it as open source software.
I ran into a bug after upgrading to 1.5.5. At first all was working well but then I kept getting errors connecting to the database. I can see the database in my cPanel as well as phpMyAdmin but I continue getting the error when I try to login. After a couple of days from upgrading the error started appearing. Nothing changed on the server side, the database server address and port are the same as before.
attached is the error log. https://paste.invoiceplane.com/view/cc1e671d