On security module, if you enable Protect Logged users, a table is created, but when you try to login, throws an error because seems the sc_session field is not enough in size for the value stored
Error
(pdo-mysql): SELECT sc_session FROM sec_logged WHERE login = '' AND sc_session <> '_SC_FAIL_SC_' (pdo-mysql): DELETE FROM sec_logged WHERE login = '' (pdo-mysql): SELECT count(*) FROM sec_logged WHERE sc_session = '_SC_BLOCKED_SC_' AND ip = '::1' AND date_login > '1443544624' (pdo-mysql): SELECT count(*) FROM sec_logged WHERE sc_session = '_SC_FAIL_SC_' AND ip = '::1' AND date_login > '1443544624' (pdo-mysql): SELECT priv_admin, active, name, email FROM sec_users WHERE login = 'admin' AND pswd = '21232f297a57a5a743894a0e4a801fc3' (pdo-mysql): SELECT date_login, ip FROM sec_logged WHERE login = 'admin' AND sc_session <> '_SC_FAIL_SC_' (pdo-mysql): DELETE FROM sec_logged WHERE login = 'admin' AND sc_session = '_SC_FAIL_SC_' AND ip = '::1' (pdo-mysql): INSERT INTO sec_logged(login, date_login, sc_session, ip) VALUES ('admin', '1443545224.8808', 'medch7llbrlrb106tnk3jntug6jqc9h8i57ns9ih0o3gb63epat0', '::1') 1406: Data too long for column 'sc_session' at row 1
ADOConnection._Execute(INSERT INTO sec_logged(login, date_login, sc_session, ip) VALUES ('admin', '1443545224.8808', 'medch7llbrlrb106tnk3jntug6jqc9h8i..., false) % line 1085, file: adodb.inc.php
ADOConnection.Execute(INSERT INTO sec_logged(login, date_login, sc_session, ip) VALUES ('admin', '1443545224.8808', 'medch7llbrlrb106tnk3jntug6jqc9h8i...) % line 2598, file: app_Login_apl.php
app_Login_apl.sc_logged_in(admin, ::1) % line 2499, file: app_Login_apl.php
app_Login_apl.sc_logged(admin) % line 1723, file: app_Login_apl.php
app_Login_apl.Valida_campos(null, null, null) % line 1072, file: app_Login_apl.php
ERROR Cerrar
Se produjo un error al acceder a la base de datos
Data too long for column 'sc_session' at row 1
View SQL
Workaround until fixed.
Change size of sc_session field, from 32 to 60 for example.