Java error when trying to upload to Leonardo

Recently I broke bootloader on my Leonardo and repaired it with Uno. Everything is theoritically ok, led blinks, but I can't upload anything (Uno works).

OS: Win10 x64 Home
Board: Arduino Leonardo (original)
Befere the problem I installed (a bit edited for compability) chiptune code from here: http://www.instructables.com/id/Arduino-Chiptunes/ (it worked but broke my bootloader), then sucessfully reinstalled bootloader)
Message I got:

Szkic używa 4 054 bajtów (14%) pamięci programu. Maksimum to 28 672 bajtów.
Globalne zmienne używają 149 bajtów (5%) dynamicznej pamięci, pozostawiając 2 411 bajtów dla lokalnych zmiennych. Maksimum to  2 560 bajtów.
Exception in thread "Thread-41" java.lang.UnsatisfiedLinkError: jssc.SerialNativeInterface.getSerialPortNames()[Ljava/lang/String;
	at jssc.SerialNativeInterface.getSerialPortNames(Native Method)
	at processing.app.SerialPortList.getWindowsPortNames(SerialPortList.java:309)
	at processing.app.SerialPortList.getPortNames(SerialPortList.java:298)
	at processing.app.SerialPortList.getPortNames(SerialPortList.java:182)
	at processing.app.Serial.list(Serial.java:229)
	at cc.arduino.packages.uploaders.SerialUploader.uploadUsingPreferences(SerialUploader.java:141)
	at cc.arduino.UploaderUtils.upload(UploaderUtils.java:78)
	at processing.app.Sketch.upload(Sketch.java:1186)
	at processing.app.Sketch.exportApplet(Sketch.java:1160)
	at processing.app.Sketch.exportApplet(Sketch.java:1132)
	at processing.app.Editor$DefaultExportHandler.run(Editor.java:2409)
	at java.lang.Thread.run(Thread.java:745)

(thread number changes everytime)

I tried reinstalling IDE, changing some baud and ports, reinstalling drivers, but nothing helps.
Of course system recognizes it (COM3, bootloader COM7).

Anybody can help? Thanks in advance.

Also when I try to lauch serial port monitor:

Exception in thread "AWT-EventQueue-0" java.lang.UnsatisfiedLinkError: jssc.SerialNativeInterface.openPort(Ljava/lang/String;Z)J
	at jssc.SerialNativeInterface.openPort(Native Method)
	at jssc.SerialPort.openPort(SerialPort.java:158)
	at processing.app.Serial.<init>(Serial.java:114)
	at processing.app.Serial.<init>(Serial.java:66)
	at processing.app.SerialPlotter$1.<init>(SerialPlotter.java:261)
	at processing.app.SerialPlotter.open(SerialPlotter.java:261)
	at processing.app.Editor.handlePlotter(Editor.java:2721)
	at processing.app.Editor$22.actionPerformed(Editor.java:795)
	at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2022)
	at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2348)
	at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402)
	at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259)
	at javax.swing.AbstractButton.doClick(AbstractButton.java:376)
	at javax.swing.plaf.basic.BasicMenuItemUI.doClick(BasicMenuItemUI.java:833)
	at javax.swing.plaf.basic.BasicMenuItemUI$Handler.mouseReleased(BasicMenuItemUI.java:877)
	at java.awt.Component.processMouseEvent(Component.java:6535)
	at javax.swing.JComponent.processMouseEvent(JComponent.java:3324)
	at java.awt.Component.processEvent(Component.java:6300)
	at java.awt.Container.processEvent(Container.java:2236)
	at java.awt.Component.dispatchEventImpl(Component.java:4891)
	at java.awt.Container.dispatchEventImpl(Container.java:2294)
	at java.awt.Component.dispatchEvent(Component.java:4713)
	at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4888)
	at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4525)
	at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4466)
	at java.awt.Container.dispatchEventImpl(Container.java:2280)
	at java.awt.Window.dispatchEventImpl(Window.java:2750)
	at java.awt.Component.dispatchEvent(Component.java:4713)
	at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:758)
	at java.awt.EventQueue.access$500(EventQueue.java:97)
	at java.awt.EventQueue$3.run(EventQueue.java:709)
	at java.awt.EventQueue$3.run(EventQueue.java:703)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76)
	at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:86)
	at java.awt.EventQueue$4.run(EventQueue.java:731)
	at java.awt.EventQueue$4.run(EventQueue.java:729)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76)
	at java.awt.EventQueue.dispatchEvent(EventQueue.java:728)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
	at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
	at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)

I changed IDE to ERW and everything is ok