invalid header field name: ?Manifest-Version (line 1)

[koppor]

I cannot open a jar from GoGamz

MIDlet-1: Boulder Dash, /icon.png, com.magmic.pykegame.PykeGame
Problem Constructing Boulder Dash class: com.magmic.pykegame.PykeGame
Reason: com.magmic.pykegame.PykeGame
java.lang.ClassNotFoundException: com.magmic.pykegame.PykeGame
        at java.base/java.net.URLClassLoader$1.run(URLClassLoader.java:429)
        at java.base/java.net.URLClassLoader$1.run(URLClassLoader.java:421)
        at java.base/java.security.AccessController.doPrivileged(AccessController.java:714)
        at java.base/java.net.URLClassLoader.findClass(URLClassLoader.java:420)
        at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:595)
        at org.recompile.mobile.MIDletLoader.start(MIDletLoader.java:106)
        at org.recompile.mobile.MobilePlatform.runJar(MobilePlatform.java:171)
        at org.recompile.freej2me.FreeJ2ME.<init>(FreeJ2ME.java:191)
        at org.recompile.freej2me.FreeJ2ME.main(FreeJ2ME.java:36)
Caused by: java.io.IOException: invalid header field name: ?Manifest-Version (line 1)
        at java.base/java.util.jar.Attributes.read(Attributes.java:436)
        at java.base/java.util.jar.Manifest.read(Manifest.java:280)
        at java.base/java.util.jar.Manifest.<init>(Manifest.java:106)
        at java.base/java.util.jar.Manifest.<init>(Manifest.java:93)
        at java.base/java.util.jar.JarFile.getManifestFromReference(JarFile.java:431)
        at java.base/java.util.jar.JarFile.getManifest(JarFile.java:405)
        at java.base/jdk.internal.loader.URLClassPath$JarLoader$2.getManifest(URLClassPath.java:842)
        at java.base/java.net.URLClassLoader.defineClass(URLClassLoader.java:491)
        at java.base/java.net.URLClassLoader$1.run(URLClassLoader.java:427)
        ... 8 more

Manifest-Version: 1.0
MIDlet-Version: 1.3.0
MIDlet-1: Boulder Dash, /icon.png, com.magmic.pykegame.PykeGame
MicroEdition-Profile: MIDP-1.0
MicroEdition-Configuration: CLDC-1.0
MIDlet-Icon: /icon.png
MIDlet-Info-URL: http://www.magmic.com
MIDlet-Data-Size: 12000
Created-By: Metaflow
C2M-BuySetup: off
C2M-URL-de-DE: http://wap.google.com
MIDlet-Delete-Confirm: Лучшие Java-игры - только на Mobers.ru
C2M-Demo: 835B256EF2A923C
Content-Folder: Games
Nokia-MIDlet-On-Screen-Keypad: no
Nokia-MIDlet-Canvas-Scaling-Orientation-Switch: false
MIDlet-Name: Boulder Dash Rocks
SiteURL: java.gogamz.com