Updated Troubleshooting (markdown)

Troubleshooting.md

@@ -8,6 +8,9 @@
    * [Special Characters and URL Conflicts](#special-characters-and-url-conflicts)
    * [Formatting Issues](#formatting-issues)
    * [PyInstaller Support](#pyinstaller-support)
+   * [General Exceptions and/or Messages](#general-exceptions-andor-messages)
+      * [RuntimeError: asyncio.run() cannot be called from a running event loop
+](https://github.com/caronc/apprise/wiki/Troubleshooting/_edit#runtimeerror-asynciorun-cannot-be-called-from-a-running-event-loop)
 <!--te-->
 
 ## General Troubleshooting
@@ -233,3 +236,21 @@ pyinstaller -F --collect-all apprise myscript.py
 
 No more errors, notifications are sent.
 
+## General Exceptions and/or Messages
+
+### RuntimeError: asyncio.run() cannot be called from a running event loop
+If your calling program runs it's own event loop, then Apprise can cause some commotion when it tries to work with it's own. For these circumstances you have 2 options.
+1. Do not call `notify()`.  Instead `await` the `async_notify()` call itself.  [See here for more details](https://github.com/caronc/apprise/wiki/Development_API#async_notify--leveraging-await-to-send-notifications).  
+1. Leverage a library that handles this exact case called [nest-asyncio](https://pypi.org/project/nest-asyncio/):
+   ```bash
+   pip install nest-asyncio
+   ```
+   Then from within your python application just import it at the top:
+   ```python
+   import nest_asyncio
+   # apply it
+   nest_asyncio.apply()
+   ```
+
+   An issue related to FastCGI was brought forth [here](https://github.com/caronc/apprise/issues/610) and solved using this method.
+