How can i use Annotator

hy all
I want to use this feature:
http://aroncarroll.com/annotator.touch.js/index.html

What I do:

import all necessary js and css files in my html, start the ionic serve and get the following error msg:

[Error] TypeError: Not enough arguments
(anonyme Funktion) (start.js:1:1108)
Globaler Code (start.js:1:1108)
[Error] Failed to load resource: the server responded with a status of 404 (Not Found) (annotator.min.css, line 0)
[Error] Failed to load resource: the server responded with a status of 404 (Not Found) (annotator.touch.css, line 0)
[Error] Unhandled Promise rejection: (8)
“Failed to load css/annotator.min.css”
"; Zone:"
""
"; Task:"
“Promise.then”
"; Value:"
"Failed to load css/annotator.min.css"
undefined
onUnhandledError (polyfills.js:3:14414)
r (polyfills.js:3:12657)
(anonyme Funktion) (polyfills.js:3:14741)
microtaskDrainDone (polyfills.js:3:14746)
o (polyfills.js:3:2318)
invoke (polyfills.js:3:10987)
[Error] Error: Uncaught (in promise): Failed to load css/annotator.min.css — polyfills.js:3:13545
onUnhandledError (polyfills.js:3:14592)
r (polyfills.js:3:12657)
(anonyme Funktion) (polyfills.js:3:14741)
microtaskDrainDone (polyfills.js:3:14746)
o (polyfills.js:3:2318)
invoke (polyfills.js:3:10987)

all of the files are reachable, hope come one can help me.

This takes me to a Kafka story. What am I supposed to get out of this?

Sorry, that was the example page, here the right page:

When you open the example page, hold (click/touch) for couple of seconds on a word and then you the annotator window