Maybe you have "killed" the application so that the removal of the transaction with "Deguara" wasn't saved because of the error. I think you should try again to remove that transaction.

If you tap the "All" button, it deletes the current filter and shows every transaction. Do you still have the error message ?

According to the error message, the transaction is not the problem, the filter is. Now that you removed the filter, do you still have the error popup ?

No, the error doesn’t come from a transaction, it comes from a condition which may be located inside a filter, a rule or a report. You shouldn’t delete any transaction at all.

You have a condition in a rule or a filter which has been duplicated. Its parameter value is "Deguara". If you find it and delete it manually, the message should disappear as well.

This is called a regular expression (or regex for short). There are plenty of tutorials on the net and also there are websites that generates them based on a more friendly user interface if you prefer.

Here is a sample document containing your 2 transactions and the rule you want. You can try to apply the rules with cmd + R shortcut to see them in action and you can also copy/paste the rule from the sample document in your own document.

You should make a rule for this work, it will save you a lot of time ! You can take inspiration from the last example of this section in the user guide : https://www.icompta-app.com/help.php#rules. This example merges name and comment into just one field but exchanging name and comment is quite ...

The transactions don't keep an information about whether or not they have been reconciled. However your reconciled transactions probably have the validated status and the unreconciled ones pending or created status ? If so, you can filter on the status to find them.