Error during SESSION activate. I got the message <br/>Got 'database is locked' executing 'insert into rivet_session (session_id,session_update_time,ip_address,session_start_time) VALUES ('F2583DB78865F524D8009B3F0ECCFB36',datetime('2025-08-17 10:35:35'),'192.168.10.136',datetime('2025-08-17 10:35:35'))' 
<pre>can't read "dir": no such variable
    while executing
"file join $dir bibtex.tcl"
    (in namespace eval "::request" script line 2)
    invoked from within
"namespace eval ::request $script"
    ("::try" body line 12)<hr/><p>OUTPUT BUFFER:</p>if {![package vsatisfies [package provide Tcl] 8.4]} {return}
package ifneeded bibtex 0.6 [list source [file join $dir bibtex.tcl]]
</pre>