diff --git a/src/api/v3/keyoxide_profile.js b/src/api/v3/keyoxide_profile.js
index 3c56e39..15c1028 100644
--- a/src/api/v3/keyoxide_profile.js
+++ b/src/api/v3/keyoxide_profile.js
@@ -65,7 +65,7 @@ const doVerification = async (profile) => {
       const claim = user.claims[iClaim]
 
       promises.push(
-        new Promise((resolve, reject) => {
+        new Promise((resolve) => {
           (async () => {
             await claim.verify(verificationOptions)
             results.push([iUser, iClaim, claim])
diff --git a/src/index.js b/src/index.js
index fb0aa89..67df0a1 100644
--- a/src/index.js
+++ b/src/index.js
@@ -49,13 +49,19 @@ let gitBranch = process.env.CI_COMMIT_BRANCH ?? process.env.COMMIT_BRANCH
 if (!gitBranch) {
   try {
     gitBranch = execSync('git rev-parse --abbrev-ref HEAD').toString().trim()
-  } catch (_) {}
+  } catch (_err) {
+    logger.debug('Could not get git branch',
+      { component: 'http_server', action: 'init' })
+  }
 }
 let gitHash = process.env.CI_COMMIT_SHA ?? process.env.COMMIT_SHA
 if (!gitHash) {
   try {
     gitHash = execSync('git rev-parse HEAD').toString().trim()
-  } catch (_) {}
+  } catch (_err) {
+    logger.debug('Could not get git hash',
+      { component: 'http_server', action: 'init' })
+  }
 }
 
 const app = express()
diff --git a/src/log.js b/src/log.js
index afff79e..1206314 100644
--- a/src/log.js
+++ b/src/log.js
@@ -32,7 +32,7 @@ import * as httpContext from 'express-http-context2'
 import * as dotenv from 'dotenv'
 dotenv.config()
 
-const anonymize = format((info, opts) => {
+const anonymize = format((info) => {
   if (process.env.NODE_ENV !== 'development') {
     info.profile_id = undefined
     info.keyserver_domain = undefined
@@ -44,7 +44,7 @@ const anonymize = format((info, opts) => {
   return info
 })
 
-const addRequestData = format((info, opts) => {
+const addRequestData = format((info) => {
   if (httpContext.get('requestId')) info.request_id = httpContext.get('requestId')
   if (httpContext.get('requestPath')) info.request_path = httpContext.get('requestPath')
   if (httpContext.get('requestIp')) info.request_ip = httpContext.get('requestIp')
diff --git a/src/server/openpgpProfiles.js b/src/server/openpgpProfiles.js
index b5180e2..750a982 100644
--- a/src/server/openpgpProfiles.js
+++ b/src/server/openpgpProfiles.js
@@ -256,7 +256,7 @@ const fetchKeybase = (username, fingerprint) => {
         profile = await doipjs.openpgp.fetchKeybase(username, fingerprint)
         fetchURL = `https://keybase.io/${username}/pgp_keys.asc?fingerprint=${fingerprint}`
       } catch (error) {
-        return reject(new Error('No public keys could be fetched from Keybase'))
+        return reject(new Error(`No public keys could be fetched from Keybase (${error})`))
       }
 
       if (!profile) {
diff --git a/src/server/utils.js b/src/server/utils.js
index 3699c7b..bdefac6 100644
--- a/src/server/utils.js
+++ b/src/server/utils.js
@@ -43,7 +43,7 @@ export function generatePageTitle (type, data) {
     case 'profile':
       try {
         return `${data.personas[data.primaryPersonaIndex].name} - Keyoxide`
-      } catch (error) {
+      } catch (_err) {
         return 'Profile - Keyoxide'
       }