I carved your data up using Excel, sorted by statement number, and got this:
```
Stmt Command SQL
1 Prepare PRAGMA cache_size = 10000
1 Execute prepared
1 Prepare PRAGMA show_datatypes = ON
1 Execute prepared
1 Prepare PRAGMA foreign_keys = 1
1 Execute prepared
2 Prepare select * from variables order by orden
2 Execute prepared
3 Prepare PRAGMA table_info('variables')
3 Execute prepared
4 Prepare select * from variables
4 Execute prepared
5 Prepare select * from tipocampo
5 Execute prepared
6 Prepare PRAGMA table_info('tipocampo')
6 Execute prepared
7 Prepare select * from campos order by id
7 Execute prepared
8 Prepare PRAGMA table_info('campos')
8 Execute prepared
9 Prepare select * from valores where campo=? order by orden
9 Bind prepared
9 Execute prepared
9 Bind prepared
9 Execute prepared
10 Prepare PRAGMA table_info('valores')
10 Execute prepared
11 Prepare select * from campos
11 Execute prepared
12 Prepare select * from plcs
12 Execute prepared
13 Prepare PRAGMA table_info('plcs')
13 Execute prepared
14 Prepare select numero,color_fondo, color_letra from casillas where pantalla=? and numero>0 and numero<=? order by numero
14 Bind prepared
14 Execute prepared
14 Bind prepared
14 Execute prepared
14 Bind prepared
14 Execute prepared
14 Bind prepared
14 Execute prepared
15 Prepare PRAGMA table_info('casillas')
15 Execute prepared
16 Prepare select * from plcs
16 Execute prepared
17 Prepare select * from pantallas order by numero
17 Execute prepared
18 Prepare PRAGMA table_info('pantallas')
18 Execute prepared
19 Prepare select * from casillas where pantalla=? and numero>0 and numero<=? order by numero
19 Bind prepared
19 Execute prepared
19 Bind prepared
19 Execute prepared
20 Prepare select * from casillas where pantalla=? and numero=0
20 Bind prepared
20 Execute prepared
20 Bind prepared
20 Execute prepared
21 Prepare BEGIN
21 Execute prepared
22 Prepare PRAGMA defer_foreign_keys = on
22 Execute prepared
23 Prepare UPDATE TriggerControl set enabled=0
23 Execute prepared
24 Prepare DROP TABLE IF EXISTS x
24 Execute prepared
25 Prepare CREATE TEMP TABLE x AS SELECT * FROM variables WHERE orden>=?
25 Bind prepared
25 Execute prepared
26 Prepare UPDATE x SET orden=orden+1
26 Execute prepared
27 Prepare DELETE FROM variables WHERE orden>=?
27 Bind prepared
27 Execute prepared
28 Prepare INSERT INTO variables SELECT * FROM x
28 Execute prepared
29 Prepare DROP TABLE x
?? Execute prepared
```
It helped me see what you are doing a little more clearly, but I didn't see a reason for the locked table. (It would be nice to know which table is locked.) When I examined the sequence, statement 14 caught my eye. It has 2 bind parameters in the SQL, and you call Bind 4 times. That's weird. That should have surfaced an error, I think. Are you checking for errors on each call?