Map bug while sailing

[Alikin 29]

Was sailing on the Exodus server, moored to be my bearings, and opened my map for a visual. When i tapped my map button, the game switched to cheerful green and white screen with the message Congrats! You found a bug!...please post below content on forums. So, here you go.

Login successful
Executing C:\Users\USERNAME\wurm\configs\autorun.txt
Starting update of login splash image...
Resized terrain FBOs to 1024
Finished loading new login splash image!
Now using reflection FBO (1024)
Initializing font texture for SansSerif (12). Texture Size: 128
Initializing font texture for SansSerif (11, bold). Texture Size: 128
Initializing font texture for SansSerif (24, bold). Texture Size: 256
Writing to C:\Users\USERNAME\wurm\players\Alikin\logs\_Skills.2017-04.txt
Writing to C:\Users\USERNAME\wurm\players\Alikin\logs\_Combat.2017-04.txt
Initializing font texture for SansSerif (15, bold). Texture Size: 256
Disabling Nagles
Execution aborted at connection 1, iteration 488612
Run time  2h 41m, local time Wed Apr 12 07:09:17 CDT 2017
Destroying game window
====== FAILED ASSERT ======
com.wurmonline.client.iHOS3zg1KL: Unable to load texture data from graphics.jar:gui/testMaps/Exodus_01.png
    at com.wurmonline.client.iHOS3zg1KL.mMV5oPkCW(SourceFile:71)
    at class.noYGFrs2Bp.FZOk5L6Gfy(SourceFile:457)
    at class.noYGFrs2Bp.FZOk5L6Gfy(SourceFile:1163)
    at class.noYGFrs2Bp.XwhlvVTrl(SourceFile:106)
    at class.mkAPbvHaa.FZOk5L6Gfy(SourceFile:65)
    at class.xZrBWJKW0.FZOk5L6Gfy(SourceFile:263)
    at class.J2GJiaZTwi.FZOk5L6Gfy(SourceFile:353)
    at class.ksqxt8aspk.XwhlvVTrl(SourceFile:170)
    at class.S3AOnQEmvr.FZOk5L6Gfy(SourceFile:990)
    at com.wurmonline.client.BILF1iey6X.fgtPPuD8uC(SourceFile:7534)
    at com.wurmonline.client.BILF1iey6X.run(SourceFile:32312)
    at java.lang.Thread.run(Unknown Source)
Caused by: javax.imageio.IIOException: Error reading PNG image data
    at com.sun.imageio.plugins.png.PNGImageReader.readImage(Unknown Source)
    at com.sun.imageio.plugins.png.PNGImageReader.read(Unknown Source)
    at javax.imageio.ImageIO.read(Unknown Source)
    at javax.imageio.ImageIO.read(Unknown Source)
    at class.noYGFrs2Bp.FZOk5L6Gfy(SourceFile:451)
    ... 10 more
Caused by: javax.imageio.IIOException: Unknown row filter type (= 254)!
    at com.sun.imageio.plugins.png.PNGImageReader.decodePass(Unknown Source)
    at com.sun.imageio.plugins.png.PNGImageReader.decodeImage(Unknown Source)
    ... 15 more
Sorry about making your eyes cross....Ali