Update eeps/eep-0068.md

Co-authored-by: Lukas Larsson <garazdawi@gmail.com>

eeps/eep-0068.md

@@ -141,7 +141,7 @@ are possible:
         {invalid_byte, byte()}
 
 The exceptions might be enhanced through the [Error Info][ERRINFO] mechanism
-with additional meta-data like byte offset where the error occured.
+with additional meta-data like byte offset where the error occurred.
 
 For the advanced and customizable API, this EEP proposes a callback-based
 API that the decoder will use to produce values from the data it parses.