I see Input/Output error(s) which implies a failure on a device on your computer. I can’t tell if the error is your hdd/sdd or install media though (I’d guessing the latter, but I’d suggest checking your ‘SMART’ status anyway just in case you’ve a dying drive)
Did you use the ‘Check disk for defects’ option before you tried install? (see https://manual.lubuntu.me/1/1.3/installation.html which is a page of the Lubuntu official documentation). If this check detects an error then you had either a bad download or bad write to your install media. (I think it’s better to check for defects before any install, but esp. if I have troubles).