diff --git a/clio.sln b/clio.sln
index e07f1449..68315083 100644
--- a/clio.sln
+++ b/clio.sln
@@ -34,13 +34,9 @@ Global
 		{718FE94B-0CB7-4977-B2D7-E661C8E57555}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{718FE94B-0CB7-4977-B2D7-E661C8E57555}.Release|Any CPU.Build.0 = Release|Any CPU
 		{E24226F9-C177-458F-AF34-9338E2699983}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{E24226F9-C177-458F-AF34-9338E2699983}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{E24226F9-C177-458F-AF34-9338E2699983}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{E24226F9-C177-458F-AF34-9338E2699983}.Release|Any CPU.Build.0 = Release|Any CPU
 		{9DDD1340-FA52-4402-BF10-11C46BA9F7A0}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{9DDD1340-FA52-4402-BF10-11C46BA9F7A0}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{9DDD1340-FA52-4402-BF10-11C46BA9F7A0}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{9DDD1340-FA52-4402-BF10-11C46BA9F7A0}.Release|Any CPU.Build.0 = Release|Any CPU
 		{DD970BB9-CAD2-4C63-9017-91C6859B39EA}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{DD970BB9-CAD2-4C63-9017-91C6859B39EA}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{DD970BB9-CAD2-4C63-9017-91C6859B39EA}.Release|Any CPU.ActiveCfg = Release|Any CPU
diff --git a/clio/Command/OpenAppCommand.cs b/clio/Command/OpenAppCommand.cs
index 803b65e8..0eab32c9 100644
--- a/clio/Command/OpenAppCommand.cs
+++ b/clio/Command/OpenAppCommand.cs
@@ -24,6 +24,19 @@ public override int Execute(OpenAppOptions options) {
 			try {
 				var settings = new SettingsRepository();
 				var env = settings.GetEnvironment(options);
+				
+				if(string.IsNullOrEmpty(env.Uri)) {
+					Logger.WriteError($"Environment:{options.Environment ?? ""} has empty url. Use 'clio reg-web-app' command to configure it.");
+					return 1;
+				}
+				
+				if(!Uri.TryCreate(env.Uri, UriKind.Absolute, out Uri _)) {
+					Logger.WriteError($"Environment:{options.Environment ?? ""} has incorrect url format. Actual Url: '{env.Uri}' " +
+						$"Use \r\n\r\n\tclio cfg -e {options.Environment} -u <correct-url-here>\r\n\r\n command to configure it.");
+					return 1;
+				}
+				
+				
 				WebBrowser.OpenUrl(env.SimpleloginUri);
 				return 0;
 			} catch (Exception e) {
diff --git a/clio/Environment/ConfigurationOptions.cs b/clio/Environment/ConfigurationOptions.cs
index 0e7c0b03..44b1b706 100644
--- a/clio/Environment/ConfigurationOptions.cs
+++ b/clio/Environment/ConfigurationOptions.cs
@@ -84,8 +84,12 @@ public string AuthAppUri {
 		}
 
 		[YamlIgnore]
+		[Newtonsoft.Json.JsonIgnore]
 		public string SimpleloginUri {
 			get {
+				if(Uri == null) {
+					return "";
+				}
 				var cleanUri = Uri;
 				if (!string.IsNullOrEmpty(cleanUri)) {
 					var domain = ".creatio.com";