I get a similar error sometimes. This is what happens to me and why:
I create a bunch of new tool presets, and save the entire presets (.tpl file) as "ToolPresets02".
Next, I select a tool preset from that new file/list via the tool preseys panel, and then open up ScriptListener, which scripted the selecting of that preset. I save the ScriptListener file as a .jsx.
Next, for example - let's say my Photoshop crashes or has been closed irregularly (through the task manager for example).
Next, I reload Photoshop.
When it is reloaded, because of the irregular closing a few seconds ago, Photoshop re-loads the preferences and within those preferences it loads the previous ToolPresets file (which would be "ToolPresets01") instead of loading the newest one ("ToolPresets02") - this is because when Photoshop was improperly closed, it didn't get a chance to save all the preferences. As a result, the older .tpl file obviously doesn't include the latest tool presets that I saved.
So, when I run the script (the .jsx file) to select my newest tool presets, it can't find them, because the older .tpl file is still in use. This is where it gives me the similar error (not sure of the exact number but it's in the 8000's from what I recall). I then need to replace the current .tpl file wIth the newer one in order to successfully select my new presets via the .jsx script.
You might be getting an error like that due to an improper Photoshop closing.. worth checking out