Error in metdb-form-1.pl

<h1>Error in metdb-form-1.pl</h1>

An error occurred.
The script believes that the error was:
<pre>
ERROR OCIEnvNlsCreate. Check ORACLE_HOME env var, NLS settings, permissions, etc.
</pre>

If you believe the script to be at fault, please mail <b>all</b> the
following info to wmc@bas.ac.uk:
<p>
<pre>
QS: 
table_prefix=U_WMC
FR:

SC:
metdb-form-1.pl
OR:
ERROR OCIEnvNlsCreate. Check ORACLE_HOME env var, NLS settings, permissions, etc.
</pre>