Open Error message opening join

I keep getting this error message when trying to open...
..........
Unterminated string. Expected delimiter: ". Path 'contacts[75].photo', line 1, position 16381.
at Newtonsoft.Json.JsonTextReader.ReadStringIntoBuffer(Char quote)
at Newtonsoft.Json.JsonTextReader.ParseString(Char quote, Json.ReadType readType)
at Newtonsoft.Json.JsonTextReader.ReadStringValue(Json.ReadType readType)
at Newtonsoft.Json.JsonTextReader.ReadAsString()
at Newtonsoft.Json.JsonReader.ReadForType(Json.Serialization.JsonContract contract, Boolean hasConverter)
at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.PopulateObject(Object newObject, Json.JsonReader reader, Json.Serialization.JsonObjectContract contract, Json.Serialization.JsonProperty member, String id)
at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateObject(Json.JsonReader reader, Type objectType, Json.Serialization.JsonContract contract, Json.Serialization.JsonProperty member, Json.Serialization.JsonContainerContract containerContract, Json.Serialization.JsonProperty containerMember, Object existingValue)
at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateValueInternal(Json.JsonReader reader, Type objectType, Json.Serialization.JsonContract contract, Json.Serialization.JsonProperty member, Json.Serialization.JsonContainerContract containerContract, Json.Serialization.JsonProperty containerMember, Object existingValue)
at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.PopulateList(Collections.IList list, Json.JsonReader reader, Json.Serialization.JsonArrayContract contract, Json.Serialization.JsonProperty containerProperty, String id)
at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateList(Json.JsonReader reader, Type objectType, Json.Serialization.JsonContract contract, Json.Serialization.JsonProperty member, Object existingValue, String id)
at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateValueInternal(Json.JsonReader reader, Type objectType, Json.Serialization.JsonContract contract, Json.Serialization.JsonProperty member, Json.Serialization.JsonContainerContract containerContract, Json.Serialization.JsonProperty containerMember, Object existingValue)
at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.SetPropertyValue(Json.Serialization.JsonProperty property, Json.JsonConverter propertyConverter, Json.Serialization.JsonContainerContract containerContract, Json.Serialization.JsonProperty containerProperty, Json.JsonReader reader, Object target)
at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.PopulateObject(Object newObject, Json.JsonReader reader, Json.Serialization.JsonObjectContract contract, Json.Serialization.JsonProperty member, String id)
at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateObject(Json.JsonReader reader, Type objectType, Json.Serialization.JsonContract contract, Json.Serialization.JsonProperty member, Json.Serialization.JsonContainerContract containerContract, Json.Serialization.JsonProperty containerMember, Object existingValue)
at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateValueInternal(Json.JsonReader reader, Type objectType, Json.Serialization.JsonContract contract, Json.Serialization.JsonProperty member, Json.Serialization.JsonContainerContract containerContract, Json.Serialization.JsonProperty containerMember, Object existingValue)
at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.Deserialize(Json.JsonReader reader, Type objectType, Boolean checkAdditionalContent)
at Newtonsoft.Json.JsonSerializer.DeserializeInternal(Json.JsonReader reader, Type objectType)
at Newtonsoft.Json.JsonConvert.DeserializeObject(String value, Type type, Json.JsonSerializerSettings settings)
at Join!<BaseAddress>+0x7078db
at Join!<BaseAddress>+0x65e5e7
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at SharedLibrary!<BaseAddress>+0x4d5c60
at SharedLibrary!<BaseAddress>+0x4d5be8
at SharedLibrary!<BaseAddress>+0x4d5ba7
at SharedLibrary!<BaseAddress>+0x39f32f
at Join!<BaseAddress>+0x948123