sometimes CPU info is not available #3957

Author: zadam

src/www.js

@@ -60,7 +60,9 @@ function startTrilium() {
     log.info(JSON.stringify(appInfo, null, 2));
 
     const cpuInfos = require('os').cpus();
-    log.info(`CPU model: ${cpuInfos[0].model}, logical cores: ${cpuInfos.length} freq: ${cpuInfos[0].speed} Mhz`); // for perf. issues it's good to know the rough configuration
+    if (cpuInfos && cpuInfos[0] !== undefined) { // https://github.com/zadam/trilium/pull/3957
+        log.info(`CPU model: ${cpuInfos[0].model}, logical cores: ${cpuInfos.length} freq: ${cpuInfos[0].speed} Mhz`); // for perf. issues it's good to know the rough configuration
+    }
 
     const httpServer = startHttpServer();