Graviton-App: all actions causes to throw errors

everything i try to change in the settings or open files throws a error.

Error An error has appeared! Check the console on developer tools for more info.

sql.svg:1 Failed to load resource: net::ERR_FILE_NOT_FOUND
php.svg:1 Failed to load resource: net::ERR_FILE_NOT_FOUND
php.js:187 Uncaught TypeError: Cannot read property 'prev' of undefined
    at Object.dispatch [as token] (php.js:187)
    at readToken (codemirror.js:1153)
    at runMode (codemirror.js:1210)
    at highlightLine (codemirror.js:1056)
    at getLineStyles (codemirror.js:1100)
    at buildLineContent (codemirror.js:1733)
    at getLineContent (codemirror.js:2123)
    at buildLineElement (codemirror.js:2204)
    at patchDisplay (codemirror.js:4192)
    at updateDisplayIfNeeded (codemirror.js:4101)
php.js:187 Uncaught TypeError: Cannot read property 'prev' of undefined
    at Object.dispatch [as token] (php.js:187)
    at readToken (codemirror.js:1153)
    at runMode (codemirror.js:1210)
    at highlightLine (codemirror.js:1056)
    at codemirror.js:3950
    at LeafChunk.iterN (codemirror.js:5596)
    at Doc.iterN (codemirror.js:5708)
    at Doc.iter (codemirror.js:6106)
    at highlightWorker (codemirror.js:3946)
    at codemirror.js:148
plugins.js:31 Uncaught ReferenceError: content is not defined
    at openPlugins (plugins.js:31)
    at HTMLButtonElement.onclick (index.html:109)
API.js:348 <div id=​"g_explorer" opened=​"false">​…​</div>​
API.js:348 <div id=​"g_explorer" opened=​"false">​…​</div>​
php.js:187 Uncaught TypeError: Cannot read property 'prev' of undefined
    at Object.dispatch [as token] (php.js:187)
    at readToken (codemirror.js:1153)
    at runMode (codemirror.js:1210)
    at highlightLine (codemirror.js:1056)
    at getLineStyles (codemirror.js:1100)
    at buildLineContent (codemirror.js:1733)
    at updateExternalMeasurement (codemirror.js:2345)
    at prepareMeasureForLine (codemirror.js:2381)
    at coordsCharInner (codemirror.js:2730)
    at coordsChar (codemirror.js:2698)
php.js:187 Uncaught TypeError: Cannot read property 'prev' of undefined
    at Object.dispatch [as token] (php.js:187)
    at readToken (codemirror.js:1153)
    at processLine (codemirror.js:1138)
    at codemirror.js:1120
    at LeafChunk.iterN (codemirror.js:5596)
    at Doc.iterN (codemirror.js:5708)
    at Doc.iter (codemirror.js:6106)
    at getContextBefore (codemirror.js:1119)
    at getLineStyles (codemirror.js:1098)
    at buildLineContent (codemirror.js:1733)
php.js:187 Uncaught TypeError: Cannot read property 'prev' of undefined
    at Object.dispatch [as token] (php.js:187)
    at readToken (codemirror.js:1153)
    at runMode (codemirror.js:1210)
    at highlightLine (codemirror.js:1056)
    at getLineStyles (codemirror.js:1100)
    at buildLineContent (codemirror.js:1733)
    at getLineContent (codemirror.js:2123)
    at buildLineElement (codemirror.js:2204)
    at patchDisplay (codemirror.js:4192)
    at updateDisplayIfNeeded (codemirror.js:4101)
dispatch @ php.js:187
readToken @ codemirror.js:1153
runMode @ codemirror.js:1210
highlightLine @ codemirror.js:1056
getLineStyles @ codemirror.js:1100
buildLineContent @ codemirror.js:1733
getLineContent @ codemirror.js:2123
buildLineElement @ codemirror.js:2204
patchDisplay @ codemirror.js:4192
updateDisplayIfNeeded @ codemirror.js:4101
endOperation_W1 @ codemirror.js:3809
endOperations @ codemirror.js:3786
(anonymous) @ codemirror.js:3775
finishOperation @ codemirror.js:2035
endOperation @ codemirror.js:3772
runInOp @ codemirror.js:3901
operation @ codemirror.js:8594
forEachCodeMirror @ codemirror.js:6613
(anonymous) @ codemirror.js:6630
setTimeout (async)
(anonymous) @ codemirror.js:6628