Hi there!

I'm trying to revive some old hardware with Lubuntu 18.04.4 32 bits, but I've hit a problem: after initiating the installation and entering the user information, the installation crashes. From /var/log/syslog:
Code:
Feb 25 15:50:27 lubuntu ubiquity[16187]: debconffilter_done: ubi-usersetup (current: ubi-usersetup)
Feb 25 15:50:27 lubuntu ubiquity[16187]: Step_before = stepUserInfo
Feb 25 15:50:29 lubuntu kernel: [ 1485.292845] traps: ubiquity[16187] trap invalid opcode ip:a83bc2d7 sp:bfab3fc0 error:0 in libjavascriptcoregtk-4.0.so.18.14.8[a7b78000+b5c000]
Code:
$ uname -a
Linux lubuntu 5.3.0-28-generic #30~18.04.1-Ubuntu SMP Fri Jan 17 06:11:07 UTC 2020 i686 athlon i686 GNU/Linux
Code:
$ lscpu
Arquitetura:                i686
Modo(s) operacional da CPU: 32-bit
Ordem dos bytes:            Little Endian
CPU(s):                     1
Lista de CPU(s) on-line:    0
Thread(s) per ncleo:       1
Ncleo(s) por soquete:      1
Soquete(s):                 1
ID de fornecedor:           AuthenticAMD
Famlia da CPU:             6
Modelo:                     8
Nome do modelo:             AMD Athlon(tm) MP
Step:                       1
CPU MHz:                    1000.028
BogoMIPS:                   2000.05
cache de L1d:               64K
cache de L1i:               64K
cache de L2:                256K
Opes:                     fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse syscall mp mmxext 3dnowext 3dnow cpuid 3dnowprefetch vmmcall
Of course, a program should check during runtime for supported instruction sets instead of just crashing, and if a instruction set required by the OS is missing in the processor, I would expect that the installation program should alert the user about it. In this case, I guess the invalid opcode is/should not be an OS requirement (specially because I can run Lubuntu from the installation disk), but is used (without checks) by the libjavascriptcoregtk-4.0 library.

Is there any way around this problem? May I use an older version of Lubuntu?

Any help is appreciated. Thanks!