Node.js 18.16.0 API部署后出503错误及lsnode.js模块缺失求助

近期在共享主机上部署了基于Node.js 18.16.0的API，初始运行一切正常，但1-2天后开始返回如下503错误：

503
Service Unavailable
The server is temporarily busy, try again later!

部署后未对任何内容做修改，此前运行符合预期。查看日志后发现如下报错：

node:internal/modules/cjs/loader:1078
  throw err;
  ^

Error: Cannot find module '/usr/local/lsws/fcgi-bin/lsnode.js'
    at Module._resolveFilename (node:internal/modules/cjs/loader:1075:15)
    at Module._load (node:internal/modules/cjs/loader:920:27)
    at Function.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:81:12)
    at node:internal/main/run_main_module:23:47 {
  code: 'MODULE_NOT_FOUND',
  requireStack: []
}

Node.js v18.16.0

已在谷歌搜索相关内容但未找到解决方案，重启服务器后问题仍然存在。以下是package.json内容：

{
  "dependencies": {
    "axios": "^1.6.8",
    "cheerio": "^1.0.0-rc.12",
    "express": "^4.19.2",
    "qs": "^6.12.0"
  }
}

内容的提问来源于stack exchange，提问作者Void