java.lang.RuntimeException: Unknown token 2: <: 

Warning:  session_start(): open(/var/lib/php/sessions/sess_k8vquc2ldfi9mo5v6bddlepnkc, O_RDWR) failed: No space left on device (28) in /var/www/tb-usercake/models/config.php on line 51



Warning:  session_start(): Failed to read session data: files (path: /var/lib/php/sessions) in /var/www/tb-usercake/models/config.php on line 51

{"1000658":"print function (=System.out.println + logging in memory)","1000659":"fail functions (improved)","1000879":"loadPage + loadPageSilently","1001518":"l function (synonym of length), length of arrays, strings, lists, size of maps","1002941":"getURLSizeByHEAD","1003328":"psl - short for print(structureLines(x))","1003715":"decodeHQuery - decode HTML query","1031838":"Meta - successor of DynamicObject","1034648":"structure function (v21, supporting enums, LIVE)"}
	at main.fail(m1008705.java:1589)
	at main$jsonDecode_Y.fail_base(m1008705.java:14008)
	at main$jsonDecode_Y.fail(m1008705.java:14006)
	at main$jsonDecode_Y.parseExpr(m1008705.java:14058)
	at main$jsonDecode_Y.parse(m1008705.java:14012)
	at main.jsonDecode(m1008705.java:13990)
	at main.jsonDecodeMap(m1008705.java:12844)
	at main.getSnippetTitles(m1008705.java:10820)
	at main$JavaXHyperlinker.codeToHTML(m1008705.java:6209)
	at main.html2(m1008705.java:85)
	at main.html(m1008705.java:67)
	at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
	at java.base/java.lang.reflect.Method.invoke(Method.java:577)
	at main.invokeMethod(m1008705.java:1601)
	at main.callOpt_withVarargs(m1008705.java:4387)
	at main.callOpt(m1008705.java:3326)
	at main.callHtmlMethod2(m1008705.java:11404)
	at main$MyHTTPD$1.get(m1008705.java:7337)
	at main$MyHTTPD$1.get(m1008705.java:1)
	at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
	at java.base/java.lang.reflect.Method.invoke(Method.java:577)
	at main.invokeMethod(m1008705.java:1601)
	at main.safeCallF(m1008705.java:642)
	at main.callF(m1008705.java:611)
	at main$MyHTTPD.serve(m1008705.java:7373)
	at main$NanoHTTPD.serve_2(m1008705.java:9572)
	at main$NanoHTTPD.serve(m1008705.java:9553)
	at main$NanoHTTPD$HTTPSession.execute(m1008705.java:8453)
	at main$NanoHTTPD$ClientHandler.run(m1008705.java:7829)
	at java.base/java.lang.Thread.run(Thread.java:833)

From: http://stackoverflow.com/questions/15240011/get-the-download-url-for-youtube-video-android-java