# state_value_not_json

## What happened

The stored signal's value does not serialize as JSON, so it is kept in memory alone and storage still holds the value before it.

## What to do

Keep JSON values in a stored signal: objects, arrays, strings, numbers, booleans, and null; convert a BigInt or a cyclic object first.

The arguments of the specific occurrence are in the query string of the URL the error gave you.