Hello, I'm struggling with the following problem, but don't have any idea how to fix it. At least the mini Cremona database is installed, I think. Could you please help me?
sage: EllipticCurve("37b2")
---------------------------------------------------------------------------
ValueError Traceback (most recent call last)
<ipython-input-13-74529bf514dc> in <module>()
----> 1 EllipticCurve("37b2")
/usr/share/sage/source/sage/structure/factory.pyx in sage.structure.factory.UniqueFactory.__call__ (/build/sagemath/src/sage-7.6/src/src/build/cythonized/sage/structure/factory.c:1856)()
360 False
361 """
--> 362 key, kwds = self.create_key_and_extra_args(*args, **kwds)
363 version = self.get_version(sage_version)
364 return self.get_object(version, key, kwds)
/usr/lib/python2.7/site-packages/sage/schemes/elliptic_curves/constructor.pyc in create_key_and_extra_args(self, x, y, j, minimal_twist, **kwds)
407 # Interpret x as a Cremona or LMFDB label.
408 from sage.databases.cremona import CremonaDatabase
--> 409 x, data = CremonaDatabase().coefficients_and_data(x)
410 # User-provided keywords may override database entries.
411 data.update(kwds)
/usr/lib/python2.7/site-packages/sage/databases/cremona.pyc in CremonaDatabase(name, mini, set_global)
1688 _db = MiniCremonaDatabase(name)
1689 else:
-> 1690 _db = LargeCremonaDatabase(name)
1691 return _db
1692 if mini:
/usr/lib/python2.7/site-packages/sage/databases/cremona.pyc in __init__(self, name, read_only, build)
1432 if not os.path.isfile(db_path):
1433 raise ValueError("Desired database (='%s') does not "%self.name \
-> 1434 + "exist")
1435 SQLDatabase.__init__(self, db_path, read_only=read_only)
1436 if self.get_skeleton() != _cremonaSkeleton:
ValueError: Desired database (='cremona') does not exist
