title: invalid request BLR at offset 163
body: <p>I have the following error in the Firebird Database. version 2.5.2</p>
  
  <pre><code>invalid request BLR at offset 163 
  function F_ENCODEDATE is not defined     
  module name or entrypoint could not be found
  
  Error while parsing procedure GETMONTHSBYYEAR's BLR
  </code></pre>
  
  <p>Until last week everything was functioning correctly. This UDF exists on the disk. How can I debug this problem? Anyone can help me to sort out this problem.</p>
  
  <p>PS: What I did so far to fix:</p>
  
  <ul>
  <li>Backup / restore - no result. (any structure problem is fixed in my opinion after a BK/Restore).</li>
  <li>Comment all dependencies, drop UDF function, recreate again - no result. </li>
  </ul>