ESU 10 Student Activities Error

Error Data

Message: Sequence contains no elements
DateTime: 12/17/2018 5:38:10 AM
GetHashCode: 65790204
GetType: System.InvalidOperationException
HelpLink:
Source: System.Core
StackTrace: at System.Linq.Enumerable.Last[TSource](IEnumerable`1 source) at scienceolympiad_ScoreBoard.Page_Load(Object sender, EventArgs e) at System.Web.UI.Control.OnLoad(EventArgs e) at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

Request Data

ASP.NET_SessionId: dhewiposvusl2pldcevzzu32
ALL_HTTP: HTTP_CONNECTION:Keep-Alive HTTP_ACCEPT:text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 HTTP_ACCEPT_ENCODING:gzip HTTP_HOST:nesoinc.org HTTP_USER_AGENT:CCBot/2.0 (https://commoncrawl.org/faq/)
ALL_RAW: Connection: Keep-Alive Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Encoding: gzip Host: nesoinc.org User-Agent: CCBot/2.0 (https://commoncrawl.org/faq/)
APPL_MD_PATH: /LM/W3SVC/26/ROOT
APPL_PHYSICAL_PATH: c:\proweb\NEScienceOlympiad\
AUTH_TYPE:
AUTH_USER:
AUTH_PASSWORD:
LOGON_USER:
REMOTE_USER:
CERT_COOKIE:
CERT_FLAGS:
CERT_ISSUER:
CERT_KEYSIZE: 256
CERT_SECRETKEYSIZE: 2048
CERT_SERIALNUMBER:
CERT_SERVER_ISSUER: C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
CERT_SERVER_SUBJECT: CN=nesoinc.org
CERT_SUBJECT:
CONTENT_LENGTH: 0
CONTENT_TYPE:
GATEWAY_INTERFACE: CGI/1.1
HTTPS: on
HTTPS_KEYSIZE: 256
HTTPS_SECRETKEYSIZE: 2048
HTTPS_SERVER_ISSUER: C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
HTTPS_SERVER_SUBJECT: CN=nesoinc.org
INSTANCE_ID: 26
INSTANCE_META_PATH: /LM/W3SVC/26
LOCAL_ADDR: 162.127.10.84
PATH_INFO: /ScienceOlympiad/ScoreBoard.aspx
PATH_TRANSLATED: c:\proweb\NEScienceOlympiad\ScienceOlympiad\ScoreBoard.aspx
QUERY_STRING:
REMOTE_ADDR: 54.84.236.168
REMOTE_HOST: 54.84.236.168
REMOTE_PORT: 49086
REQUEST_METHOD: GET
SCRIPT_NAME: /ScienceOlympiad/ScoreBoard.aspx
SERVER_NAME: nesoinc.org
SERVER_PORT: 443
SERVER_PORT_SECURE: 1
SERVER_PROTOCOL: HTTP/1.1
SERVER_SOFTWARE: Microsoft-IIS/10.0
URL: /ScienceOlympiad/ScoreBoard.aspx
HTTP_CONNECTION: Keep-Alive
HTTP_ACCEPT: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
HTTP_ACCEPT_ENCODING: gzip
HTTP_HOST: nesoinc.org
HTTP_USER_AGENT: CCBot/2.0 (https://commoncrawl.org/faq/)

User Data

User Name:
User ID: 0