Please post a backtrace

PID: 8105 (featherpad)
UID: 1000 (ruben)
GID: 1000 (ruben)
Signal: 6 (ABRT)
Timestamp: Fri 2022-06-24 15:08:06 -03 (14min ago)
Command Line: featherpad
Executable: /usr/bin/featherpad
Control Group: /user.slice/user-1000.slice/session-1.scope
Unit: session-1.scope
Slice: user-1000.slice
Session: 1
Owner UID: 1000 (ruben)
Boot ID: d6046513f5e74f99ab2e0c39e6431cc2
Machine ID: 7d7857b5008d4cf5bd00c0a77a1fdd5e
Hostname: ruben-ms7309
Storage: /var/lib/systemd/coredump/core.featherpad.1000.d6046513f5e74f99ab2e0c39e6431cc2.8105.1656094086000000.zst (present)
Disk Size: 873.8K
Message: Process 8105 (featherpad) of user 1000 dumped core.

Module linux-vdso.so.1 with build-id f664a70ca8cd22e6898fde894161e51d02a16e18
Module libqt6gtk2-style.so with build-id 35fe1f9969bb8bb675b0b870e7ff4577ea4fb331
Module libcomposeplatforminputcontextplugin.so with build-id 6b4c3794e524bfb628df7df424525b3732f692eb
Module libmurrine.so with build-id 3824d19e4ef664dbb6958b18f63058561a14a14a
Module libadwaita.so with build-id f2f02ce741b403f3f5bf874b5d937013c3b08bf2
Module libpixmap.so with build-id b341d0e84b659acedad71f3ed2a481ef33bd5536
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Module libvorbisfile.so.3 with build-id 45d2551167a616d448beb033ba49394831992887
Module libcanberra.so.0 with build-id 8ddef69c9b84a86062c88a59510639cd908fc6d3
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Module libcanberra-gtk-module.so with build-id c8fe78f5b41088fda9170f57b19aa6c8ebce94cb
Module libblkid.so.1 with build-id 140694a62d8d4d07c6c320a501f948dd1b389d73
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Module libmount.so.1 with build-id 4436aeea0cd8c01b5a77969e0531184f8b3513ce
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Module libqxcb.so with build-id 59f74c026fb16aefc51209d9d62478bc3c359924
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Module liblz4.so.1 with build-id e63600ab23b2f6997f42fac2fa56e1f02ce159a1
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Module libgcrypt.so.20 with build-id 8bf3cb884124273640de797a3e77d86c98434ea4
Module libcap.so.2 with build-id 21b00ab76bb16fde56fd741f07233c78069f0579
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Module libpcre2-16.so.0 with build-id 68a5c2d52b45bfa6b1e93d2766e80094f52d9ebf
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Module libsystemd.so.0 with build-id a220b34e873e29bb116d88be0bf11fac7089ef4d
Module libicuuc.so.71 with build-id 633fdc0c5385d916571f6140e7a978ad0630ef55
Module libicui18n.so.71 with build-id 6fd5c97fd2808ee29958bf809656d5885e7e8963
Module libfreetype.so.6 with build-id f89dd5502e75aca28fb5c3ccd0dbd26fe822bfef
Module libmd4c.so.0 with build-id 2151dba72cdc9960097e6e960a58a2f03c8bb96e
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Module libpng16.so.16 with build-id 2dc0bce07f199bf983c07a05fb95a6f4af83a9b3
Module libOpenGL.so.0 with build-id b674d36fbce1bed29b54247cf4e25e0f3c64ff13
Module libGLX.so.0 with build-id 02bd4ac6acc4da9288c543ea1a0cdaa70c5e151a
Module libxkbcommon.so.0 with build-id 6cf66eead3fcc20fe5df10162bfbcdcdc8b2a183
Module libglib-2.0.so.0 with build-id f1d15261ce1317b9003a1f0957d5a528d063f630
Module libfontconfig.so.1 with build-id 36be6951b8c1e42a7dd05684a37400fc8ef9147c
Module libEGL.so.1 with build-id 30b30de54f2f848a7b8bed469349c9a7ab1b7c22
Module ld-linux-x86-64.so.2 with build-id 0effd0e43efa4468d3c31871c93af0b7f3005673
Module libxcb.so.1 with build-id 13d677412a71468381b11092915d231f664d18d3
Module libdbus-1.so.3 with build-id 7f4b16b4b407cbae2d7118d6f99610e29a18a56a
Module libbrotlidec.so.1 with build-id 66c54e9301f7e102ecc1d88547e5f0e8a056fe22
Module libgssapi_krb5.so.2 with build-id 292f1ce32161c0ecc4a287bc8494d5d7c420a03f
Module libzstd.so.1 with build-id bd9a65f663b7f48e1427c418714eb8d005c37f71
Module libm.so.6 with build-id 1b7296ef9fd806e47060788389293c824b09ad72
Module libz.so.1 with build-id fefe3219a96d682ec98fcfb78866b8594298b5a2
Module libc.so.6 with build-id 60df1df31f02a7b23da83e8ef923359885b81492
Module libgcc_s.so.1 with build-id 0e3de903950e35ae59a5de8c00b1817a4a71ca01
Module libstdc++.so.6 with build-id b3eaebcb5369487562e52dd8d016c9cd77f80c54
Module libQt6Core.so.6 with build-id 7102a2aab456a931771a93296118da3ff75a5aa9
Module libQt6Gui.so.6 with build-id e02e344e24b7e602e16e83d07756783ab8bb6694
Module libQt6Widgets.so.6 with build-id 415f061076f512b27bcccef23d94ab4592a40b58
Module libhunspell-1.7.so.0 with build-id 7caac66c224c3c73f5dab058dde688c5d05df15d
Module libX11.so.6 with build-id 310f8f1b8d7457d326407e0eb794353c62769b73
Module libQt6DBus.so.6 with build-id c91e8565a1a66577ce8d602c495047d7665f960e
Module libQt6PrintSupport.so.6 with build-id be428bb11ca8aac00aa221dbf96a09dd7981c9bd
Module libQt6Network.so.6 with build-id 96b81e807682e5779c8d3894935a756105541a00
Module libQt6Svg.so.6 with build-id 77fcf3332682849c81a575435dec136329905074
Module featherpad with build-id 072be38ccb447a1efaed3d357a94c3afbe444179
Stack trace of thread 8105:
#0 0x00007ff98d5d936c n/a (libc.so.6 + 0x8e36c)
#1 0x00007ff98d589838 raise (libc.so.6 + 0x3e838)
#2 0x00007ff98d573535 abort (libc.so.6 + 0x28535)
#3 0x00007ff98da3d071 _Z6qAbortv (libQt6Core.so.6 + 0x8f071)
#4 0x00007ff98da3d3a0 _ZNK14QMessageLogger5fatalEPKcz (libQt6Core.so.6 + 0x8f3a0)
#5 0x00007ff98da4863b n/a (libQt6Core.so.6 + 0x9a63b)
#6 0x00007ff9888d41b3 n/a (libqt6gtk2-style.so + 0x291b3)
#7 0x00007ff9888bf5c4 n/a (libqt6gtk2-style.so + 0x145c4)
#8 0x00007ff9888d8cea n/a (libqt6gtk2-style.so + 0x2dcea)
#9 0x00007ff98e8e9bfd _ZN13QStyleFactory6createERK7QString (libQt6Widgets.so.6 + 0x1f8bfd)
#10 0x00007ff98e85cdba _ZN12QApplication5styleEv (libQt6Widgets.so.6 + 0x16bdba)
#11 0x00007ff98e85d6c3 _ZN19QApplicationPrivate10initializeEv (libQt6Widgets.so.6 + 0x16c6c3)
#12 0x00007ff98e85d967 _ZN19QApplicationPrivate4initEv (libQt6Widgets.so.6 + 0x16c967)
#13 0x00005632315434fc _ZN10FeatherPad11FPsingletonC2ERiPPcb (featherpad + 0x6e4fc)
#14 0x00005632315341c6 main (featherpad + 0x5f1c6)
#15 0x00007ff98d574290 n/a (libc.so.6 + 0x29290)
#16 0x00007ff98d57434a __libc_start_main (libc.so.6 + 0x2934a)
#17 0x0000563231537225 _start (featherpad + 0x62225)

Stack trace of thread 8106:
#0 0x00007ff98d650c3f __poll (libc.so.6 + 0x105c3f)
#1 0x00007ff98d2c920b n/a (libxcb.so.1 + 0xd20b)
#2 0x00007ff98d2caccd xcb_wait_for_event (libxcb.so.1 + 0xeccd)
#3 0x00007ff989fbe062 n/a (libQt6XcbQpa.so.6 + 0x4d062)
#4 0x00007ff98dc154f1 n/a (libQt6Core.so.6 + 0x2674f1)
#5 0x00007ff98d5d754d n/a (libc.so.6 + 0x8c54d)
#6 0x00007ff98d65c874 __clone (libc.so.6 + 0x111874)
ELF object binary architecture: AMD x86-64

libqt6gtk2-style.so <- unsupported style