Custom clients crash for me after the seaon became Spring

[Lorefin]

Both custom clients Amber and Ender crash after I move few steps
Ender doesn't crash in caves, havent checked Amber
It started to happen after the Spring kicked-in few days ago
... Normal client works fine

Amber just shuts down, Ender has crash report
This is it:

java.lang.RuntimeException: haven.BGL$BGLException: haven.GOut$GLOutOfMemoryException: GL Error: 1285 (out of memory)
at com.jogamp.common.util.awt.AWTEDTExecutor.invoke(AWTEDTExecutor.java:58)
at jogamp.opengl.awt.AWTThreadingPlugin.invokeOnOpenGLThread(AWTThreadingPlugin.java:103)
at jogamp.opengl.ThreadingImpl.invokeOnOpenGLThread(ThreadingImpl.java:206)
at javax.media.opengl.Threading.invokeOnOpenGLThread(Threading.java:172)
at javax.media.opengl.Threading.invoke(Threading.java:191)
at javax.media.opengl.awt.GLCanvas.display(GLCanvas.java:528)
at haven.HavenPanel$6.uglyjoglhack(HavenPanel.java:517)
at haven.HavenPanel$6.run(HavenPanel.java:552)
at java.lang.Thread.run(Unknown Source)
Caused by: haven.BGL$BGLException: haven.GOut$GLOutOfMemoryException: GL Error: 1285 (out of memory)
at haven.BufferBGL.run(BufferBGL.java:46)
at haven.HavenPanel.redraw(HavenPanel.java:432)
at haven.HavenPanel$1.display(HavenPanel.java:109)
at jogamp.opengl.GLDrawableHelper.displayImpl(GLDrawableHelper.java:649)
at jogamp.opengl.GLDrawableHelper.display(GLDrawableHelper.java:633)
at javax.media.opengl.awt.GLCanvas$9.run(GLCanvas.java:1271)
at jogamp.opengl.GLDrawableHelper.invokeGLImpl(GLDrawableHelper.java:1103)
at jogamp.opengl.GLDrawableHelper.invokeGL(GLDrawableHelper.java:978)
at javax.media.opengl.awt.GLCanvas$10.run(GLCanvas.java:1282)
at java.awt.event.InvocationEvent.dispatch(Unknown Source)
at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
at java.awt.EventQueue.access$500(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)
Caused by: haven.GOut$GLOutOfMemoryException: GL Error: 1285 (out of memory)
at haven.GOut.glexcfor(GOut.java:129)
at haven.GOut.checkerr(GOut.java:137)
at haven.BGL$1.run(BGL.java:91)
at haven.BufferBGL.run(BufferBGL.java:44)
... 22 more

[MagicManICT]

Follow up with the makers of the clients. The Bugs section is reserved for gameplay issues and issues with the standard client.

I'd suggest you post the crash reports you get in the appropriate thread rather than saying that Amber and Ender are both crashing.