Hello, we've had this plant for around 10 years & it has always thrived with minimal intervention. Kept in a sunny spot by a window, lots of daylight but not South facing. Watering every week, maybe twice a week with tap water. About 3 weeks ago, we decided to re-pot it as it had grown lots & it was looking a bit droopy. Since repotting it (from a ceramic pot without any drainage, into a terracotta planter with drainage holes), it has been looking really sad. Very droopy leaves, brown edges, yellow rather than green. Not sure what has gone wrong or how we can save it. Picture attached, please help!