If I open a map on my server is disconnects me, client side it says "Internal server error", in the server window it says this, happens with brand new map I've just made and old maps I had from the stable version. The chunk I'm trying to get a map of is an old chunk.

[20:22:17] [Server thread/WARN]: Failed to handle packet for /127.0.0.1:52503
q: Ticking player
at yi.i(SourceFile:475) ~[server.jar:?]
at yz.b(SourceFile:198) ~[server.jar:?]
at lv.a(SourceFile:234) ~[server.jar:?]
at yy.c(SourceFile:171) [server.jar:?]
at net.minecraft.server.MinecraftServer.b(SourceFile:872) [server.jar:?]
at xh.b(SourceFile:345) [server.jar:?]
at net.minecraft.server.MinecraftServer.a(SourceFile:799) [server.jar:?]
at net.minecraft.server.MinecraftServer.run(SourceFile:658) [server.jar:?]
at java.lang.Thread.run(Unknown Source) [?:1.8.0_221]
Caused by: java.lang.IllegalArgumentException: Cannot get property cdt

{name=axis, clazz=class fr$a, values=[x, y, z]}

as it does not exist in Block

{minecraft:dark_oak_wall_sign}

at cct.c(SourceFile:93) ~[server.jar:?]
at btc.a(SourceFile:58) ~[server.jar:?]
at ccu$a.d(SourceFile:691) ~[server.jar:?]
at bib.a(SourceFile:171) ~[server.jar:?]
at bib.a(SourceFile:364) ~[server.jar:?]
at bhw.a(SourceFile:452) ~[server.jar:?]
at bbp.j(SourceFile:290) ~[server.jar:?]
at bbq.l(SourceFile:575) ~[server.jar:?]
at amy.h(SourceFile:2175) ~[server.jar:?]
at bbq.h(SourceFile:274) ~[server.jar:?]
at yi.i(SourceFile:411) ~[server.jar:?]
... 8 more
[20:22:17] [Server thread/INFO]: nome350 lost connection: Internal server error