在 Ubuntu 20.04 上，我的 texlive 安装崩溃并生成以下错误日志。这是什么意思？我该如何修复？
No pages of output.
Transcript written on pdflatex.log.
fmtutil [INFO]: log file copied to: /var/lib/texmf/web2c/pdftex/pdflatex.log
fmtutil [INFO]: /var/lib/texmf/web2c/pdftex/pdflatex.fmt installed.
fmtutil [ERROR]: running `luatex -ini -jobname=luatex -progname=luatex luatex.ini </dev/null' return status: 1
fmtutil [ERROR]: cannot copy log luatex.log to: /var/lib/texmf/web2c/luatex
fmtutil [ERROR]: returning error due to option --strict
fmtutil [ERROR]: running `luatex -ini -jobname=lualatex -progname=lualatex lualatex.ini </dev/null' return status: 1
fmtutil [ERROR]: cannot copy log lualatex.log to: /var/lib/texmf/web2c/luatex
fmtutil [ERROR]: returning error due to option --strict
fmtutil [ERROR]: running `luatex -ini -jobname=dvilualatex -progname=dvilualatex dvilualatex.ini </dev/null' return status: 1
fmtutil [ERROR]: cannot copy log dvilualatex.log to: /var/lib/texmf/web2c/luatex
fmtutil [ERROR]: returning error due to option --strict
fmtutil [ERROR]: running `luatex -ini -jobname=dviluatex -progname=dviluatex dviluatex.ini </dev/null' return status: 1
fmtutil [ERROR]: cannot copy log dviluatex.log to: /var/lib/texmf/web2c/luatex
fmtutil [ERROR]: returning error due to option --strict
fmtutil [INFO]: successfully rebuilt formats: 8
fmtutil [INFO]: failed to build: 4 (luatex/luatex luatex/lualatex luatex/dvilualatex luatex/dviluatex)
fmtutil [INFO]: total formats: 12
fmtutil [INFO]: exiting with status 4