Buenos días,
Gracias por tu respuesta Jose.
Mi problema va más allá de configuración en la plataforma. Revisando los logs en la base de datos, me aparece el siguiente error cuando selecciono a los participantes de cualquier curso. .. Así con todas esas líneas, sale con solo darle click a Participantes.
ERROR: root page 299 of index "mdl_userlast_usecou_uix" has level 0, expected 2
STATEMENT: SELECT COUNT(distinct u.id) FROM mdl_user u
LEFT OUTER JOIN mdl_context ctx
ON (u.id=ctx.instanceid AND ctx.contextlevel = 30)
JOIN mdl_role_assignments r
ON u.id=r.userid
LEFT OUTER JOIN mdl_user_lastaccess ul
ON (r.userid=ul.userid and ul.courseid = 304) WHERE (r.contextid = 37578 OR r.contextid in (1169,1))
AND u.deleted = 0
AND (ul.courseid = 304 OR ul.courseid IS NULL)
AND u.username != 'guest'
AND r.roleid NOT IN (1)
ERROR: root page 299 of index "mdl_userlast_usecou_uix" has level 0, expected 2
STATEMENT: SELECT COUNT(distinct u.id) FROM mdl_user u
LEFT OUTER JOIN mdl_context ctx
ON (u.id=ctx.instanceid AND ctx.contextlevel = 30)
JOIN mdl_role_assignments r
ON u.id=r.userid
LEFT OUTER JOIN mdl_user_lastaccess ul
ON (r.userid=ul.userid and ul.courseid = 304) WHERE (r.contextid = 37578 OR r.contextid in (1169,1))
AND u.deleted = 0
AND (ul.courseid = 304 OR ul.courseid IS NULL)
AND u.username != 'guest'
AND r.roleid NOT IN (1)
ERROR: root page 299 of index "mdl_userlast_usecou_uix" has level 0, expected 2
STATEMENT: SELECT DISTINCT u.id, u.username, u.firstname, u.lastname,
u.email, u.city, u.country, u.picture,
u.lang, u.timezone, u.emailstop, u.maildisplay, u.imagealt,
COALESCE(ul.timeaccess, 0) AS lastaccess,
r.hidden,
ctx.id AS ctxid, ctx.path AS ctxpath,
ctx.depth AS ctxdepth, ctx.contextlevel AS ctxlevel , r.timeend FROM mdl_user u
LEFT OUTER JOIN mdl_context ctx
ON (u.id=ctx.instanceid AND ctx.contextlevel = 30)
JOIN mdl_role_assignments r
ON u.id=r.userid
LEFT OUTER JOIN mdl_user_lastaccess ul
ON (r.userid=ul.userid and ul.courseid = 304) WHERE (r.contextid = 37578 OR r.contextid in (1169,1))
AND u.deleted = 0
AND (ul.courseid = 304 OR ul.courseid IS NULL)
AND u.username != 'guest'
AND r.roleid NOT IN (1)
ORDER BY lastaccess DESC, r.hidden DESC LIMIT 20
---------Hasta aquí----------
Espero que alguien entienda a que se refiere... y pueda ayudarme un poco, muchas gracias!!
Saludos!