Fix encoding module error

server/package-lock.json

@@ -1679,6 +1679,14 @@
       "resolved": "https://registry.npmjs.org/encodeurl/-/encodeurl-1.0.2.tgz",
       "integrity": "sha1-rT/0yG7C0CkyL1oCw6mmBslbP1k="
     },
+    "encoding": {
+      "version": "0.1.12",
+      "resolved": "https://registry.npmjs.org/encoding/-/encoding-0.1.12.tgz",
+      "integrity": "sha1-U4tm8+5izRq1HsMjgp0flIDHS+s=",
+      "requires": {
+        "iconv-lite": "0.4.19"
+      }
+    },
     "enhanced-resolve": {
       "version": "3.4.1",
       "resolved": "https://registry.npmjs.org/enhanced-resolve/-/enhanced-resolve-3.4.1.tgz",

server/package.json

@@ -18,11 +18,11 @@
   },
   "homepage": "https://github.com/hastic/hastic-server#readme",
   "dependencies": {
+    "encoding": "^0.1.12",
     "event-stream": "^3.3.4",
     "express": "^4.16.3",
     "fast-csv": "^2.4.1",
-    "node-fetch": "^2.1.2",
-    "telegraf": "^3.21.0"
+    "node-fetch": "^2.1.2"
   },
   "devDependencies": {
     "@types/express": "^4.11.1",