BuddyPress.org

SWA has a date in english, you change to spanish and now SWA is in spanish and previous activities are in english. It’s just normal !

Now you have verified and nothing changed. Have you create a new content meanwhile ? Deactivating and reactivating plugins has no influence on the SWA. If you don’t use specifically this plugin, so far he provides some activity (like add a picture to the album) who goes to the SWA, who don’t see absolutely nothing.

Could be that if you apply changes about date format in WP settings, or in a plugin, this will not appear in the site wide activity. The modification will only apply after you did the change. SWA has no backward compatibility with settings. Also for language format.

Sorry for this detail, but it must be knowed before complete headache

@naturalworldstm,

can you give a site URL please ? Also do you use BP on a multisite or on a single WP ? What PHP version do you use ? And does your host provide gettext with PHP. ?
https://codex.wordpress.org/User:Ipstenu/How_to_create_a_phpinfo%28%29_page

Basically, the %s ago thing is a wordpress function – also used by BP on the activity time. If you already checked the BP part, and it seems ok according what you say above, i don’t know what happens so far.
This issue could be a mistake from the translator or something else directly handled by WordPress.

If you’re using WP 3.5.1, check the languages folder witch must contain the following files:

buddypress.mo

And WP’s default translation files:
es_ES.mo (for WP in spanish)
admin-es_ES.mo (dashboard)
admin-network-es_ES.mo (network dashboard)
continents-cities-es_ES.mo (a list of cities in your language, used for date/time setting in dashboard, not mandatory)

If you use bbPress 2.2.x, there should also being a folder /bbPress/ containing bbress-es_ES.mo

In wp-config.php you must have a line saying
define(”WPLANG’, ‘es_ES’);

If you use WP MS, you also have to set the network to your language in the Network Settings.

If you use a third party theme, it may contain his own /languages/ or /lang/ folder with a pot file at least. This file must be used to translate the theme.The theme translation mo file should be in this folder.

Some themes are sometimes delivered with .mo files. Unfortunatly, those additionnal mo files are rarely updated. So if the theme has a es_ES.mo or theme-es_ES.mo, you can use the pot file to check or update the theme  translation. In fact, in such case, the only file in witch you can trust, is the pot file. It also can be that the pot is not updated too, which means you have to recreate it from start, with a compiler such as poEdit….

This rule is also valuable for plugins.

At this point, i suspect a corrupted WP file. To eliminate this possibility, i would try the following.

Delete the whole wp-includes folder and upload a fresh copy of 3.5.1 via FTP
https://core.trac.wordpress.org/changeset/23897/tags/3.5.1?old_path=%2F&format=zip

If you use a previous version, go here:
https://core.trac.wordpress.org/browser/tags

Don’t use the right click to download something from Trac repo. Always click first on the file or folder name, and use the download button at the bottom of that page.