08:30:29.765 FATAL Something's wrong. Maybe you can find the solution here: https://hexo.io/docs/troubleshooting.html Template render error: (unknown path) [Line 8, Column 25] Error: Unable to call `the return value of (posts["first"])["updated"]["toISOString"]`, which is undefined or falsey at Object._prettifyError (/root/blog/node_modules/nunjucks/src/lib.js:36:11) at /root/blog/node_modules/nunjucks/src/environment.js:561:19 at Template.root [as rootRenderFunc] (eval at _compile (/root/blog/node_modules/nunjucks/src/environment.js:631:18), <anonymous>:212:3) at Template.render (/root/blog/node_modules/nunjucks/src/environment.js:550:10) at Hexo.module.exports (/root/blog/node_modules/hexo-generator-feed/lib/generator.js:40:22) at Hexo.tryCatcher (/root/blog/node_modules/bluebird/js/release/util.js:16:23) at Hexo.<anonymous> (/root/blog/node_modules/bluebird/js/release/method.js:15:34) at /root/blog/node_modules/hexo/lib/hexo/index.js:318:20 at tryCatcher (/root/blog/node_modules/bluebird/js/release/util.js:16:23) at MappingPromiseArray._promiseFulfilled (/root/blog/node_modules/bluebird/js/release/map.js:68:38) at MappingPromiseArray.PromiseArray._iterate (/root/blog/node_modules/bluebird/js/release/promise_array.js:115:31) at MappingPromiseArray.init (/root/blog/node_modules/bluebird/js/release/promise_array.js:79:10) at MappingPromiseArray._asyncInit (/root/blog/node_modules/bluebird/js/release/map.js:37:10) at _drainQueueStep (/root/blog/node_modules/bluebird/js/release/async.js:97:12) at _drainQueue (/root/blog/node_modules/bluebird/js/release/async.js:86:9) at Async._drainQueues (/root/blog/node_modules/bluebird/js/release/async.js:102:5) at Immediate.Async.drainQueues [as _onImmediate] (/root/blog/node_modules/bluebird/js/release/async.js:15:14) at processImmediate (internal/timers.js:456:21)