The following properties have been set:
Property: [AdminUser] = true {boolean}
Property: [ProcessorArchitecture] = AMD64 {string}
Property: [VersionNT] = 6.1.0 {version}
Launching Application.
Using MsiInstallProduct with package path 'C:\Users\<user>\Downloads\setup(2)\Setup.msi' and command line ''
MsiInstallProduct returned '1638'
Error: 

Server Error in '/' Application.
Input string was not in a correct format.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.FormatException: Input string was not in a correct format.

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace:

[FormatException: Input string was not in a correct format.]
   System.Number.StringToNumber(String str, NumberStyles options, NumberBuffer& number, NumberFormatInfo info, Boolean parseDecimal) +2755599
   System.Number.ParseInt32(String s, NumberStyles style, NumberFormatInfo info) +112
   System.String.System.IConvertible.ToInt32(IFormatProvider provider) +43
   System.Convert.ChangeType(Object value, Type conversionType, IFormatProvider provider) +217
   System.Data.SqlClient.SqlParameter.CoerceValue(Object value, MetaType destinationType) +896

[FormatException: Failed to convert parameter value from a String to a Int32.]
   System.Data.SqlClient.SqlParameter.CoerceValue(Object value, MetaType destinationType) +943
   System.Data.SqlClient.SqlParameter.GetCoercedValue() +29
   System.Data.SqlClient.SqlParameter.Validate(Int32 index, Boolean isCommandProc) +97
   System.Data.SqlClient.SqlCommand.SetUpRPCParameters(_SqlRPC rpc, Int32 startCount, Boolean inSchema, SqlParameterCollection parameters) +120
   System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, Boolean async) +1005
   System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method, DbAsyncResult result) +132
   System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method) +32
   System.Data.SqlClient.SqlCommand.ExecuteScalar() +137
   RouterToolsSignUp._Default.InsertCustomers(Object myName, Object myEmail, Object myPhone, Object myCountry, Object myUsedude, Object myNumberOfRouters) in C:\My Data\Development\RouterToolsSignUp\RouterToolsSignUp\Signup.aspx.vb:252
   RouterToolsSignUp._Default.btnBuyNow_Click(Object sender, EventArgs e) in C:\My Data\Development\RouterToolsSignUp\RouterToolsSignUp\Signup.aspx.vb:30
   System.Web.UI.WebControls.Button.OnClick(EventArgs e) +105
   System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument) +107
   System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +7
   System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +11
   System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +33
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1746