Increasing Mastodon character limit

I have tried by exiting from this mastodon shell before running the precompile. For a short instant I thought that was the solution, but then I got another problem:

mastodon@sub:~$ RAILS_ENV=production bundle exec rails assets:precompile
bash: bundle: command not found
mastodon@sub:~$ exit
exit

peer@sub:/$ sudo -i
root@sub:~# cd /var/www/mastodon/live
root@sub:/var/www/mastodon/live# RAILS_ENV=production bundle exec rails assets:precompile
Compiling...
Compilation failed:
/var/www/mastodon/live/node_modules/glob/node_modules/minimatch/dist/cjs/ast.js:86
    #fillNegs() {
             ^

SyntaxError: Unexpected token '('
    at new Script (vm.js:88:7)
    at NativeCompileCache._moduleCompile (/var/www/mastodon/live/node_modules/v8-compile-cache/v8-compile-cache.js:240:18)
    at Module._compile (/var/www/mastodon/live/node_modules/v8-compile-cache/v8-compile-cache.js:184:36)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1027:10)
    at Module.load (internal/modules/cjs/loader.js:863:32)
    at Function.Module._load (internal/modules/cjs/loader.js:708:14)
    at Module.require (internal/modules/cjs/loader.js:887:19)
    at require (/var/www/mastodon/live/node_modules/v8-compile-cache/v8-compile-cache.js:159:20)
    at Object.<anonymous> (/var/www/mastodon/live/node_modules/glob/node_modules/minimatch/dist/cjs/index.js:9:18)
    at Module._compile (/var/www/mastodon/live/node_modules/v8-compile-cache/v8-compile-cache.js:192:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1027:10)
    at Module.load (internal/modules/cjs/loader.js:863:32)
    at Function.Module._load (internal/modules/cjs/loader.js:708:14)
    at Module.require (internal/modules/cjs/loader.js:887:19)
    at require (/var/www/mastodon/live/node_modules/v8-compile-cache/v8-compile-cache.js:159:20)
    at Object.<anonymous> (/var/www/mastodon/live/node_modules/glob/dist/cjs/src/index.js:4:21)
    at Module._compile (/var/www/mastodon/live/node_modules/v8-compile-cache/v8-compile-cache.js:192:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1027:10)
    at Module.load (internal/modules/cjs/loader.js:863:32)
    at Function.Module._load (internal/modules/cjs/loader.js:708:14)
    at Module.require (internal/modules/cjs/loader.js:887:19)
    at require (/var/www/mastodon/live/node_modules/v8-compile-cache/v8-compile-cache.js:159:20)
    at Object.<anonymous> (/var/www/mastodon/live/config/webpack/shared.js:6:18)
    at Module._compile (/var/www/mastodon/live/node_modules/v8-compile-cache/v8-compile-cache.js:192:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1027:10)
    at Module.load (internal/modules/cjs/loader.js:863:32)
    at Function.Module._load (internal/modules/cjs/loader.js:708:14)
    at Module.require (internal/modules/cjs/loader.js:887:19)
    at require (/var/www/mastodon/live/node_modules/v8-compile-cache/v8-compile-cache.js:159:20)
    at Object.<anonymous> (/var/www/mastodon/live/config/webpack/production.js:13:22)

What should I do?

Thank you