Error 6 non stop crashing

[itzicewar]

19:51:44 Info [Launcher] Version: client e3958c2 / manifest 4138b9a
19:51:44 Info [Launcher] CPU: GenuineIntel Intel(R) Core(TM) i3-2120 CPU @ 3.30GHz
19:51:44 Info [Launcher] CPU supports SSSE3: YES
19:51:44 Trace [Launcher] Loading hybris libraries
19:51:44 Trace [HybrisUtils] Loaded OS library libm.so.6
load_library: Undefined symbol gammaf_r
load_library: Undefined symbol gamma_r
19:51:44 Trace [HybrisUtils] Loaded OS library libz.so.1
19:51:44 Trace [HybrisUtils] Loaded OS library /tmp/.mount_MinecrN8Y84z/usr/share/mcpelauncher/lib/native/x86/libfmod.so.10.20
load_library: Undefined symbol ZN4FMOD14ChannelControl15set3DAttributesEPK11FMOD_VECTORS3
19:51:44 Trace [Launcher] Loading Minecraft library
linker: dlopen(name="libminecraftpe.so", flags=0x0, extinfo=(null), caller="(null)", caller_ns=@0x858a4a4, targetSdkVersion=10000) ...
linker: find_libraries(ns=): task=libminecraftpe.so, is_dt_needed=0
linker: load_library(ns=, task=libminecraftpe.so, flags=0x0, search_linked_namespaces=1): calling open_library with realpath=
linker: load_library(ns=, task=libminecraftpe.so, flags=0x0, realpath=/home/janne/.local/share/mcpelauncher/versions/1.16.10.02/lib/x86/libminecraftpe.so, search_linked_namespaces=1)
linker: load_library(ns=, task=libminecraftpe.so): Adding DT_NEEDED task: libfmod.so
linker: load_library(ns=, task=libminecraftpe.so): Adding DT_NEEDED task: liblog.so
linker: load_library(ns=, task=libminecraftpe.so): Adding DT_NEEDED task: libandroid.so
linker: load_library(ns=, task=libminecraftpe.so): Adding DT_NEEDED task: libEGL.so
linker: load_library(ns=, task=libminecraftpe.so): Adding DT_NEEDED task: libOpenSLES.so
linker: load_library(ns=, task=libminecraftpe.so): Adding DT_NEEDED task: libm.so
linker: load_library(ns=, task=libminecraftpe.so): Adding DT_NEEDED task: libdl.so
linker: load_library(ns=, task=libminecraftpe.so): Adding DT_NEEDED task: libc.so
linker: find_libraries(ns=): task=libfmod.so, is_dt_needed=1
linker: find_library_internal(ns=, task=libfmod.so): Already loaded (by soname): libfmod.so
linker: find_libraries(ns=): task=liblog.so, is_dt_needed=1
linker: find_library_internal(ns=, task=liblog.so): Already loaded (by soname): liblog.so
linker: find_libraries(ns=): task=libandroid.so, is_dt_needed=1
linker: find_library_internal(ns=, task=libandroid.so): Already loaded (by soname): libandroid.so
linker: find_libraries(ns=): task=libEGL.so, is_dt_needed=1
linker: find_library_internal(ns=, task=libEGL.so): Already loaded (by soname): libEGL.so
linker: find_libraries(ns=): task=libOpenSLES.so, is_dt_needed=1
linker: find_library_internal(ns=, task=libOpenSLES.so): Already loaded (by soname): libOpenSLES.so
linker: find_libraries(ns=): task=libm.so, is_dt_needed=1
linker: find_library_internal(ns=, task=libm.so): Already loaded (by soname): libm.so
linker: find_libraries(ns=): task=libdl.so, is_dt_needed=1
linker: find_library_internal(ns=, task=libdl.so): Already loaded (by soname): libdl.so
linker: find_libraries(ns=): task=libc.so, is_dt_needed=1
linker: find_library_internal(ns=, task=libc.so): Already loaded (by soname): libc.so
linker: ... dlclose(realpath="/home/janne/.local/share/mcpelauncher/versions/1.16.10.02/lib/x86/libminecraftpe.so"@0xf589d610) ... load group root is "/home/janne/.local/share/mcpelauncher/versions/1.16.10.02/lib/x86/libminecraftpe.so"@0xf589d610
linker: ... dlclose: calling destructors for "/home/janne/.local/share/mcpelauncher/versions/1.16.10.02/lib/x86/libminecraftpe.so"@0xf589d610 ...
linker: ... dlclose: calling destructors for "/home/janne/.local/share/mcpelauncher/versions/1.16.10.02/lib/x86/libminecraftpe.so"@0xf589d610 ... done
linker: ... dlclose: unloading "/home/janne/.local/share/mcpelauncher/versions/1.16.10.02/lib/x86/libminecraftpe.so"@0xf589d610 ...
linker: ... dlclose: unload_si was not linked - not unloading external references ...
linker: ... dlopen failed: cannot locate symbol "_ZN4FMOD14ChannelControl9getVolumeEPf" referenced by "/home/janne/.local/share/mcpelauncher/versions/1.16.10.02/lib/x86/libminecraftpe.so"...
Signal 11 received
Backtrace elements: 9
#0 /tmp/.mount_MinecrN8Y84z/usr/bin/./mcpelauncher-client32(_ZN12CrashHandler12handleSignalEiPv+0xf1) [0x82e8851]
#1 linux-gate.so.1(__kernel_sigreturn+0) [0xf7ef4b70]
#2 /lib/i386-linux-gnu/libc.so.6(+0x87b36) [0xf76dbb36]
#3 /tmp/.mount_MinecrN8Y84z/usr/bin/../lib32/libc++.so.1(_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6appendEPKc+0x24) [0xf7a08104]
#4 /tmp/.mount_MinecrN8Y84z/usr/bin/./mcpelauncher-client32() [0x81fe5a2]
#5 /tmp/.mount_MinecrN8Y84z/usr/bin/./mcpelauncher-client32(_ZN14MinecraftUtils16loadMinecraftLibEv+0x85) [0x82eaf35]
#6 /tmp/.mount_MinecrN8Y84z/usr/bin/./mcpelauncher-client32(main+0xf53) [0x81fc663]
#7 /lib/i386-linux-gnu/libc.so.6(__libc_start_main+0xf1) [0xf766e391]
#8 /tmp/.mount_MinecrN8Y84z/usr/bin/./mcpelauncher-client32() [0x81fb31d]
Dumping stack...
Process exited with unexpected exit code: 6

[ChristopherHX]

Thats an old version.
delete the AppImage file

Doesn't 'Check for updates' work for you? Update it or download the update manually, 'check for updates' might have been added later
https://github.com/minecraft-linux/mcpelauncher-wiki/blob/Update-wiki-for-ng/getting_started.rst

You have an version from 12 May 2020, it works with 1.14.60.5, or just install an update