Error Occurred While Processing Request

Parameter 2 of function Mid which is now 0 must be a non-negative integer

The error occurred in C:\Inetpub\flysas\_checkBrowser.cfm: line 52
Called from C:\Inetpub\flysas\_checkBrowser.cfm: line 72
Called from C:\Inetpub\flysas\Application.cfm: line 30

50 : 		{OSCode = "Unknown";}
51 : 	
52 : 	ThisBrowserPlatform = ReplaceNoCase(Trim(ListFirst(MID(UA,FindNoCase(BrowserCode,UA),LEN(UA)),";)([")),BrowserCode, "");
53 : 	ThisOperatingSystem = Trim(ListFirst(MID(UA,FindNoCase(OSCode,UA),LEN(UA)),";)"));
54 : 	browserVersion 		= ReReplace(ListFirst(ThisBrowserPlatform,"."),"[^[:digit:]]","","ALL");

Please try the following:

Check the ColdFusion documentation to verify that you are using the correct syntax.
Search the Knowledge Base to find a solution to your problem.

Browser
Remote Address	aaa.bbb.ccc.ddd
Referrer
Date/Time	xx-xx-xx xx:xx XX

Stack Trace

at cf_checkBrowser2ecfm1042813528$funcBROWSERINFO.runFunction(C:\Inetpub\flysas\_checkBrowser.cfm:52) at cf_checkBrowser2ecfm1042813528.runPage(C:\Inetpub\flysas\_checkBrowser.cfm:72) at cfApplication2ecfm1385106292.runPage(C:\Inetpub\flysas\Application.cfm:30)

coldfusion.runtime.InvalidFunctionArgException: Parameter 2 of function Mid which is now 0 must be a non-negative integer
	at coldfusion.runtime.CFPage.Mid(CFPage.java:3027)
	at cf_checkBrowser2ecfm1042813528$funcBROWSERINFO.runFunction(C:\Inetpub\flysas\_checkBrowser.cfm:52)
	at coldfusion.runtime.UDFMethod.invoke(UDFMethod.java:338)
	at coldfusion.runtime.UDFMethod$ArgumentCollectionFilter.invoke(UDFMethod.java:250)
	at coldfusion.filter.FunctionAccessFilter.invoke(FunctionAccessFilter.java:53)
	at coldfusion.runtime.UDFMethod.runFilterChain(UDFMethod.java:203)
	at coldfusion.runtime.UDFMethod.invoke(UDFMethod.java:165)
	at coldfusion.runtime.CfJspPage._invokeUDF(CfJspPage.java:1768)
	at cf_checkBrowser2ecfm1042813528.runPage(C:\Inetpub\flysas\_checkBrowser.cfm:72)
	at coldfusion.runtime.CfJspPage.invoke(CfJspPage.java:147)
	at coldfusion.filter.CFVariablesScopeFilter.invoke(CFVariablesScopeFilter.java:60)
	at coldfusion.tagext.lang.ModuleTag.doStartTag(ModuleTag.java:256)
	at coldfusion.runtime.CfJspPage._emptyTcfTag(CfJspPage.java:1881)
	at cfApplication2ecfm1385106292.runPage(C:\Inetpub\flysas\Application.cfm:30)
	at coldfusion.runtime.CfJspPage.invoke(CfJspPage.java:147)
	at coldfusion.tagext.lang.IncludeTag.doStartTag(IncludeTag.java:357)
	at coldfusion.filter.CfincludeFilter.invoke(CfincludeFilter.java:62)
	at coldfusion.filter.CfincludeFilter.include(CfincludeFilter.java:30)
	at coldfusion.filter.ApplicationFilter.invoke(ApplicationFilter.java:93)
	at coldfusion.filter.RequestMonitorFilter.invoke(RequestMonitorFilter.java:43)
	at coldfusion.filter.PathFilter.invoke(PathFilter.java:80)
	at coldfusion.filter.ExceptionFilter.invoke(ExceptionFilter.java:47)
	at coldfusion.filter.ClientScopePersistenceFilter.invoke(ClientScopePersistenceFilter.java:28)
	at coldfusion.filter.BrowserFilter.invoke(BrowserFilter.java:35)
	at coldfusion.filter.GlobalsFilter.invoke(GlobalsFilter.java:43)
	at coldfusion.filter.DatasourceFilter.invoke(DatasourceFilter.java:22)
	at coldfusion.CfmServlet.service(CfmServlet.java:105)
	at coldfusion.bootstrap.BootstrapServlet.service(BootstrapServlet.java:89)
	at jrun.servlet.ServletInvoker.invoke(ServletInvoker.java:91)
	at jrun.servlet.JRunInvokerChain.invokeNext(JRunInvokerChain.java:42)
	at jrun.servlet.JRunRequestDispatcher.invoke(JRunRequestDispatcher.java:252)
	at jrun.servlet.ServletEngineService.dispatch(ServletEngineService.java:527)
	at jrun.servlet.jrpp.JRunProxyService.invokeRunnable(JRunProxyService.java:192)
	at jrunx.scheduler.ThreadPool$ThreadThrottle.invokeRunnable(ThreadPool.java:451)
	at jrunx.scheduler.WorkerThread.run(WorkerThread.java:66)