diff --git a/Known-issues.md b/Known-issues.md
index 34e131e..04230bb 100644
--- a/Known-issues.md
+++ b/Known-issues.md
@@ -1,4 +1,15 @@
 # Known issues ProfitTrailer 1.2.5.2+
 
 * Setting your sell strategy to HIGHBB does break your monitor updates.
-ProfitTrailer will do trades, but you won't see the pairs in the gui
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+ProfitTrailer will do trades, but you won't see the pairs in the gui
+
+* If you encounter the following error message in the log: `ERROR Application - Please fix: trading_apiKey — INVALID_SIGNATURE`
+
+ 1. Go to API keys on your exchange
+ 2. Create an empty API key (no permissions)
+ 3. Save
+ 4. Now set permissions for that API key
+ 5. Save
+ 6. Use that API key/secret for default and trading. (testing purposes only)
+ 7. Register that new key with @ProfitTrailerAssistantBot
+ 8. Cross your fingers, stomp your feet 3 times, and start the bot (but don't clap your hands, just don't!)
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