npm run dev fails with "Invalid regular expression" error

I have set up a new Symfony 5.2 project and add Webpack Encore. The project uses a shared Server with no root access using npm 5.6.0 and node 9.9.0. As far as I know the Server runs on a 32bit CentOS Version, so this seems to be the highest supported versions of npm and node. Yarn is not available on this server.

// setup new Symfony 5.2 project
symfony new sym5 --version=5.2 --full
...
cd sym5

// add Webpack Encore
composer require symfony/webpack-encore-bundle
npm install
...

Installations works without any problems. I have made no changes to the webpack.config.js and asset/ files which have been automatically created. Running npm run dev fails:

npm run dev

> @ dev /customers/123/webpages/sym5
> encore dev

Running webpack ...

/customers/123/webpages/sym5/node_modules/camelcase/index.js:37
    return input.replace(/[_.\- ]+([\p{Alpha}\p{N}_]|$)/gu, (_, p1) => p1.toLocaleUpperCase(options.locale))
                 ^

SyntaxError: Invalid regular expression: /[_.\- ]+([\p{Alpha}\p{N}_]|$)/: Invalid escape
    at postProcess (/customers/123/webpages/sym5/node_modules/camelcase/index.js:37:15)
    at camelCase (/customers/123/webpages/sym5/node_modules/camelcase/index.js:86:9)
    at getAssetKind (/customers/123/webpages/sym5/node_modules/assets-webpack-plugin/dist/lib/getAssetKind.js:9:10)
    at /customers/123/webpages/sym5/node_modules/assets-webpack-plugin/dist/index.js:97:26
    at Array.reduce (<anonymous>)
    at /customers/123/webpages/sym5/node_modules/assets-webpack-plugin/dist/index.js:91:30
    at Array.reduce (<anonymous>)
    at afterEmit (/customers/123/webpages/sym5/node_modules/assets-webpack-plugin/dist/index.js:78:27)
    at AsyncSeriesHook.eval [as callAsync] (eval at create (/customers/123/webpages/sym5/node_modules/tapable/lib/HookCodeFactory.js:33:10), <anonymous>:20:1)
    at AsyncSeriesHook.lazyCompileHook (/customers/123/webpages/sym5/node_modules/tapable/lib/Hook.js:154:20)
    at asyncLib.forEachLimit.err (/customers/123/webpages/sym5/node_modules/webpack/lib/Compiler.js:482:27)
    at /customers/123/webpages/sym5/node_modules/neo-async/async.js:2818:7
    at done (/customers/123/webpages/sym5/node_modules/neo-async/async.js:3522:9)
    at AsyncSeriesHook.eval [as callAsync] (eval at create (/customers/123/webpages/sym5/node_modules/tapable/lib/HookCodeFactory.js:33:10), <anonymous>:6:1)
    at outputFileSystem.writeFile.err (/customers/123/webpages/sym5/node_modules/webpack/lib/Compiler.js:464:33)
    at /customers/123/webpages/sym5/node_modules/graceful-fs/graceful-fs.js:61:14
    at FSReqWrap.oncomplete (fs.js:153:20)
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! @ dev: `encore dev`
npm ERR! Exit status 1
npm ERR! 
npm ERR! Failed at the @ dev script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR!     /customers/123/.npm/_logs/2020-12-07T12_46_26_301Z-debug.log

Since the error is not reported in any my custom files, I assume that this is a problem of Node.js / Webpack itself? Is this correct?

I found another issue which says, that node v8 should be the min. requirement. Thus using v9.9.0 should be no problem, should it?

Is there anything I can do to find the actual cause and to solve the problem?

// Content of /customers/123/.npm/_logs/2020-12-07T12_46_26_301Z-debug.log

0 info it worked if it ends with ok
1 verbose cli [ '/customers/123/bin/nodejs/node-v9.9.0/bin/node',
1 verbose cli   '/customers/123/bin/nodejs/node-v9.9.0/bin/npm',
1 verbose cli   'run',
1 verbose cli   'dev' ]
2 info using npm@5.6.0
3 info using node@v9.9.0
4 verbose run-script [ 'predev', 'dev', 'postdev' ]
5 info lifecycle @~predev: @
6 info lifecycle @~dev: @
7 verbose lifecycle @~dev: unsafe-perm in lifecycle true
8 verbose lifecycle @~dev: PATH: /customers/123/bin/nodejs/node-v9.9.0/lib/node_modules/npm/node_modules/npm-lifecycle/node-gyp-bin:/customers/123/webpages/sym5/node_modules/.bin:/customers/123/bin/:/customers/123/bin/nodejs/node-v9.9.0/bin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/customers/123/.gem/bin
9 verbose lifecycle @~dev: CWD: /customers/123/webpages/sym5
10 silly lifecycle @~dev: Args: [ '-c', 'encore dev' ]
11 silly lifecycle @~dev: Returned: code: 1  signal: null
12 info lifecycle @~dev: Failed to exec dev script
13 verbose stack Error: @ dev: `encore dev`
13 verbose stack Exit status 1
13 verbose stack     at EventEmitter.<anonymous> (/customers/123/bin/nodejs/node-v9.9.0/lib/node_modules/npm/node_modules/npm-lifecycle/index.js:285:16)
13 verbose stack     at EventEmitter.emit (events.js:180:13)
13 verbose stack     at ChildProcess.<anonymous> (/customers/123/bin/nodejs/node-v9.9.0/lib/node_modules/npm/node_modules/npm-lifecycle/lib/spawn.js:55:14)
13 verbose stack     at ChildProcess.emit (events.js:180:13)
13 verbose stack     at maybeClose (internal/child_process.js:936:16)
13 verbose stack     at Process.ChildProcess._handle.onexit (internal/child_process.js:220:5)
14 verbose pkgid @
15 verbose cwd /customers/123/webpages/sym5
16 verbose Linux 3.18.117-pvops-xen-x64
17 verbose argv "/customers/123/bin/nodejs/node-v9.9.0/bin/node" "/customers/123/bin/nodejs/node-v9.9.0/bin/npm" "run" "dev"
18 verbose node v9.9.0
19 verbose npm  v5.6.0
20 error code ELIFECYCLE
21 error errno 1
22 error @ dev: `encore dev`
22 error Exit status 1
23 error Failed at the @ dev script.
23 error This is probably not a problem with npm. There is likely additional logging output above.
24 verbose exit [ 1, true ]

symfony / webpack-encore

npm run dev fails with "Invalid regular expression" error #873