diff --git a/lib/models/dns_info.dart b/lib/models/dns_info.dart
index 2f23fd5..10d5030 100644
--- a/lib/models/dns_info.dart
+++ b/lib/models/dns_info.dart
@@ -46,7 +46,7 @@ class DnsInfo {
   factory DnsInfo.fromJson(Map<String, dynamic> json) => DnsInfo(
     upstreamDns: json["upstream_dns"] != null ? List<String>.from(json["upstream_dns"].map((x) => x)) : [],
     upstreamDnsFile: json["upstream_dns_file"],
-    bootstrapDns: List<String>.from(json["bootstrap_dns"].map((x) => x)),
+    bootstrapDns: json["bootstrap_dns"] != null ? List<String>.from(json["bootstrap_dns"].map((x) => x)) : [],
     protectionEnabled: json["protection_enabled"],
     ratelimit: json["ratelimit"],
     blockingMode: json["blocking_mode"],
diff --git a/lib/screens/logs/logs.dart b/lib/screens/logs/logs.dart
index 5ff0097..f44a760 100644
--- a/lib/screens/logs/logs.dart
+++ b/lib/screens/logs/logs.dart
@@ -334,7 +334,7 @@ class _LogsState extends State<Logs> {
                   tooltip: AppLocalizations.of(context)!.filters,
                 )
               : const SizedBox(),
-            IconButton(
+            if (statusProvider.serverStatus != null) IconButton(
               tooltip: AppLocalizations.of(context)!.settings,
               onPressed: () => {
                 if (width > 700 || !(Platform.isAndroid || Platform.isIOS)) {
diff --git a/lib/screens/settings/dhcp/dhcp.dart b/lib/screens/settings/dhcp/dhcp.dart
index d0ab42c..402a063 100644
--- a/lib/screens/settings/dhcp/dhcp.dart
+++ b/lib/screens/settings/dhcp/dhcp.dart
@@ -59,7 +59,7 @@ class _DhcpScreenState extends State<DhcpScreen> {
       if (dhcpProvider.dhcp != null) {
         setState(() {
           if (dhcpProvider.dhcp!.dhcpStatus.interfaceName != null && dhcpProvider.dhcp!.dhcpStatus.interfaceName != '') {
-            selectedInterface = dhcpProvider.dhcp!.networkInterfaces.firstWhere((iface) => iface.name == dhcpProvider.dhcp!.dhcpStatus.interfaceName);
+            try {selectedInterface = dhcpProvider.dhcp!.networkInterfaces.firstWhere((iface) => iface.name == dhcpProvider.dhcp!.dhcpStatus.interfaceName);} catch (_) {}
             enabled = dhcpProvider.dhcp!.dhcpStatus.enabled;
             ipv4StartRangeController.text = dhcpProvider.dhcp!.dhcpStatus.v4.rangeStart;
             ipv4EndRangeController.text = dhcpProvider.dhcp!.dhcpStatus.v4.rangeEnd ?? '';
diff --git a/lib/screens/settings/encryption/encryption.dart b/lib/screens/settings/encryption/encryption.dart
index 1282279..de75918 100644
--- a/lib/screens/settings/encryption/encryption.dart
+++ b/lib/screens/settings/encryption/encryption.dart
@@ -103,32 +103,34 @@ class _EncryptionSettingsWidgetState extends State<EncryptionSettingsWidget> {
       if (result['result'] == 'success') {
         await checkValidDataApi(data: result['data'].toJson());
 
-        setState(() {
-          enabled = result['data'].enabled;
-          domainNameController.text = result['data'].serverName ?? '';
-          redirectHttps = result['data'].forceHttps;
-          httpsPortController.text = result['data'].portHttps != null ? result['data'].portHttps.toString() : '';
-          tlsPortController.text = result['data'].portDnsOverTls != null ? result['data'].portDnsOverTls.toString() : '';
-          dnsOverQuicPortController.text = result['data'].portDnsOverQuic != null ? result['data'].portDnsOverQuic.toString() : '';
-          if (result['data'].certificateChain != '') {
-            certificateOption = 1;
-            certificateContentController.text = decodeBase64(result['data'].certificateChain);
-          }
-          else {
-            certificateOption = 0;
-            certificatePathController.text = result['data'].certificatePath;
-          }
-          if (result['data'].privateKey != '' || result['data'].privateKeySaved == true) {
-            privateKeyOption = 1;
-          }
-          else {
-            privateKeyOption = 0;
-            privateKeyPathController.text = result['data'].privateKeyPath;
-          }
-          usePreviouslySavedKey = result['data'].privateKeySaved;
+        if (mounted) {
+          setState(() {
+            enabled = result['data'].enabled;
+            domainNameController.text = result['data'].serverName ?? '';
+            redirectHttps = result['data'].forceHttps;
+            httpsPortController.text = result['data'].portHttps != null ? result['data'].portHttps.toString() : '';
+            tlsPortController.text = result['data'].portDnsOverTls != null ? result['data'].portDnsOverTls.toString() : '';
+            dnsOverQuicPortController.text = result['data'].portDnsOverQuic != null ? result['data'].portDnsOverQuic.toString() : '';
+            if (result['data'].certificateChain != '') {
+              certificateOption = 1;
+              certificateContentController.text = decodeBase64(result['data'].certificateChain);
+            }
+            else {
+              certificateOption = 0;
+              certificatePathController.text = result['data'].certificatePath;
+            }
+            if (result['data'].privateKey != '' || result['data'].privateKeySaved == true) {
+              privateKeyOption = 1;
+            }
+            else {
+              privateKeyOption = 0;
+              privateKeyPathController.text = result['data'].privateKeyPath;
+            }
+            usePreviouslySavedKey = result['data'].privateKeySaved;
 
-          loadStatus = 1;
-        });
+            loadStatus = 1;
+          });
+        }
       }
       else {
         widget.appConfigProvider.addLog(result['log']);