Can't find contents.json when decrypting, but contents.json is in there

[AshtonScripts]

[ERROR] Cannot find contents.json, it seems that this file is not encrypted
[ERROR] Failed to decrypt pack
java.lang.IllegalArgumentException: null
at org.allaymc.encryptmypack.PackEncryptor.decryptContentsJson(PackEncryptor.java:282) ~[EncryptMyPack-2.0.1-shaded.jar:?]
at org.allaymc.encryptmypack.PackEncryptor.decrypt0(PackEncryptor.java:200) ~[EncryptMyPack-2.0.1-shaded.jar:?]
at org.allaymc.encryptmypack.PackEncryptor.decrypt(PackEncryptor.java:71) [EncryptMyPack-2.0.1-shaded.jar:?]
at org.allaymc.encryptmypack.GUI$4.mouseClicked(GUI.java:99) [EncryptMyPack-2.0.1-shaded.jar:?]
at java.awt.AWTEventMulticaster.mouseClicked(AWTEventMulticaster.java:278) [?:?]
at java.awt.Component.processMouseEvent(Component.java:6579) [?:?]
at javax.swing.JComponent.processMouseEvent(JComponent.java:3404) [?:?]
at java.awt.Component.processEvent(Component.java:6341) [?:?]
at java.awt.Container.processEvent(Container.java:2260) [?:?]
at java.awt.Component.dispatchEventImpl(Component.java:4958) [?:?]
at java.awt.Container.dispatchEventImpl(Container.java:2318) [?:?]
at java.awt.Component.dispatchEvent(Component.java:4790) [?:?]
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4916) [?:?]
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4568) [?:?]
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4500) [?:?]
at java.awt.Container.dispatchEventImpl(Container.java:2304) [?:?]
at java.awt.Window.dispatchEventImpl(Window.java:2671) [?:?]
at java.awt.Component.dispatchEvent(Component.java:4790) [?:?]
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:725) [?:?]
at java.awt.EventQueue.dispatchEvent(EventQueue.java:702) [?:?]
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:203) [?:?]
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:124) [?:?]
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:113) [?:?]
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:109) [?:?]
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101) [?:?]
at java.awt.EventDispatchThread.run(EventDispatchThread.java:90) [?:?]

same problem occurs with all the resource packs i tried to decrypt

[smartcmd]

rename content.json to contents.json?

[AshtonScripts]

rename content.json to contents.json?

that was just a typo in the title of the post, the contents.json file is already in there