I've just noticed the following entries in my server error log:

Links SQL: $TPL was imported by Plugins::Days_Old, but is no longer used at /home/serve/links/scripts/links/admin/Links.pm line 49.

Running Links SQL v2.05. Does v.2.05 no longer use $TPL as it is declared in the days_old.pm module. The error was not evident with prior versions of Links SQL. And otherwise, the plugin functions properly. Delete (or rename) $TPL in the module?

Try removing $TPL from the days old pm file (should be near the top in a "use" statement)