Read the statement by Michael Teeuw here.
MMM-Hover node-modul error
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 Hello togheter i has installed the MMM-Hover Modul but there is an problem. i recive this error message: Whoops! There was an uncaught exception… 
 Error: The module ‘/home/pi/MagicMirror/modules/MMM-Hover/node_modules/epoll/build/Release/epoll.node’
 was compiled against a different Node.js version using
 NODE_MODULE_VERSION 59. This version of Node.js requires
 NODE_MODULE_VERSION 57. Please try re-compiling or re-installing
 the module (for instance, usingnpm rebuildornpm install).
 at process.module.(anonymous function) [as dlopen] (ELECTRON_ASAR.js:166:20)
 at Object.Module._extensions…node (module.js:671:18)
 at Object.module.(anonymous function) [as .node] (ELECTRON_ASAR.js:166:20)
 at Module.load (module.js:561:32)
 at tryModuleLoad (module.js:504:12)
 at Function.Module._load (module.js:496:3)
 at Module.require (module.js:586:17)
 at require (internal/module.js:11:18)
 at bindings (/home/pi/MagicMirror/modules/MMM-Hover/node_modules/bindings/bindings.js:84:48)
 at Object. (/home/pi/MagicMirror/modules/MMM-Hover/node_modules/epoll/epoll.js:1:192)
 MagicMirror will not quit, but it might be a good idea to check why this happened. Maybe no internet connection?
 If you think this really is an issue, please open an issue on GitHub: https://github.com/MichMich/MagicMirror/issues
 Launching application.i hope some one can help me with this issue. Regards Skorpionbird 
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 I had a similar problem once with anoter module, this helped #Change into the modules directory cd modules/MMM-Hover # Rebuild module for the correct elecron version npm rebuild --runtime=electron --target=$(../../node_modules/electron/cli.js --version) --disturl=https://atom.io/download/atom-shell --build-from-sourceAxLED 
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 @Skorpionbird 
 I am not sure if the code mentioned above works, i just saw you have an node problem, my problem was a electron problem.
 AxLED
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 Please use the Markdown features of the board to assist others in reading your code and log files. On another note, when the error message says: Error: The module '/home/pi/MagicMirror/modules/MMM-Hover/node_modules/epoll/build/Release/epoll.node’ 
 was compiled against a different Node.js version using
 NODE_MODULE_VERSION 59. This version of Node.js requires
 NODE_MODULE_VERSION 57. Please try re-compiling or re-installing
 the module (for instance, using npm rebuild or npm install).Did you try those commands? cd /home/pi/MagicMirror/modules/MMM-Hover npm rebuild
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 dosn`t work with npm rebuild 
 any ideas
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 Rebuild the electron 
 cd MagicMirror/modules/MMM-Hover
 npm install --save-dev electron-rebuild
 ./node_modules/.bin/electron-rebuild

