An error occured while attaching module (Dynamicweb.Frontend.Content)

System.OutOfMemoryException: Exception of type 'System.OutOfMemoryException' was thrown.
at System.String.Concat(String str0, String str1)
at System.Text.RegularExpressions.RegexNode.ReduceConcatenation()
at System.Text.RegularExpressions.RegexNode.Reduce()
at System.Text.RegularExpressions.RegexNode.AddChild(RegexNode newChild)
at System.Text.RegularExpressions.RegexParser.AddGroup()
at System.Text.RegularExpressions.RegexParser.ScanRegex()
at System.Text.RegularExpressions.RegexParser.Parse(String re, RegexOptions op)
at System.Text.RegularExpressions.Regex..ctor(String pattern, RegexOptions options, TimeSpan matchTimeout, Boolean useCache)
at System.Text.RegularExpressions.Regex..ctor(String pattern)
at Dynamicweb.Rendering.TemplateScriptParser.ParseIfs(String tmpOutput, Template template, Int32 count)
at Dynamicweb.Rendering.TemplateScriptParser.ParseIf(String tmpOutput, Template template)
at Dynamicweb.Rendering.Template.Output()
at Dynamicweb.Rendering.Loop.Commit(String parentName, Int32 parentLoopIndex, Int32 loopCounter)
at Dynamicweb.Rendering.Template.CommitLoop()
at Dynamicweb.eCommerce.Frontend.Renderer.RenderProducts(ProductCollection Products, Template ParentTemplate, String LoopName, Int32 LoopCounter, Boolean renderRelatedProducts, Boolean renderRelatedLists)
at Dynamicweb.eCommerce.Frontend.Renderer.RenderProducts(ProductCollection Products, Template ParentTemplate)
at Dynamicweb.eCommerce.Frontend.Renderer.internalRenderProducts(ProductCollection products, Boolean isProductsFromIndex)
at Dynamicweb.eCommerce.Frontend.Frontend.ListProducts(ProductCollection products, String groupsIdent, Boolean hasBeenSorted)
at Dynamicweb.eCommerce.Frontend.Frontend.List(String groups)
at Dynamicweb.eCommerce.Frontend.Frontend.EcomRender()
at Dynamicweb.eCommerce.Frontend.Frontend.GetContent()
at Dynamicweb.Frontend.Content.GetModule(DataRow& ParagraphRow)