Pistas?____

Bem, estou cansado não consigo descobrir nada..
O problema é que o erro que me aparece não se parece com os de sql avançado
O erro que me aparece é este quando insiro esse url:
http://www.gcolegiouniversal.com/Web...ePage.aspx?id='

Server Error in '/' Application.
--------------------------------------------------------------------------------

Line 1: Incorrect syntax near ''. Unclosed quotation mark before the character string ''.
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.Data.OleDb.OleDbException: Line 1: Incorrect syntax near ''. Unclosed quotation mark before the character string ''.

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:


[OleDbException (0x80040e14): Line 1: Incorrect syntax near ''.
Unclosed quotation mark before the character string ''.]
System.Data.OleDb.OleDbDataReader.ProcessResults(I nt32 hr) +63
System.Data.OleDb.OleDbDataReader.NextResult() +286
System.Data.OleDb.OleDbCommand.ExecuteReaderIntern al(CommandBehavior behavior, String method) +269
System.Data.OleDb.OleDbCommand.ExecuteReader(Comma ndBehavior behavior) +69
System.Data.OleDb.OleDbCommand.ExecuteReader() +7
FrontEndGCU.WebDialogs.ConteudosHomePage.List(Stri ng id) in c:\\inetpub\\wwwroot\\FrontEndGCU\\WebDialogs\\Conteudo sHomePage.aspx.cs:159
FrontEndGCU.WebDialogs.ConteudosHomePage.Page_Load (Object sender, EventArgs e) in c:\\inetpub\\wwwroot\\FrontEndGCU\\WebDialogs\\Conteudo sHomePage.aspx.cs:37
System.Web.UI.Control.OnLoad(EventArgs e) +67
System.Web.UI.Control.LoadRecursive() +35
System.Web.UI.Page.ProcessRequestMain() +750

P.S. Ajudem-me, dêem-me pistas

Obrigado