Your pics:
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Thanks :) new to the forum!

Appears to be collected soluble salts from water.
Does the container have a drain hole? If not, it needs one.

Cool, welcome!

Hi jean001a. No its in a pottery container with no drainage. Should it be in a plastic container instead the pottery container? Any idea what is wrong with the tips? Thanks

the trunk of your plant is really cool. I think I have the same thing id on gardenweb as some kind of yucca. both things could be from tap water. you could use distilled water or even spring water would be better. it would benefit from better draining soil but from what I have seen will grow in just about anything. at minimum move to a draining pot. you could put in a cheap plastic with drainage and put that inside your fancy one.

Repotting into a pot with one or a few holes is a good idea. Give it a better-draining soil while you are at it. Alternatively, for an entirely lazy/minimalist (but also an inferior) approach, get a hole or a few drilled right in this pot - just have something like a plate or a saucer to set under it once you are done. Set the plant on something where there is access to the bottom (two chairs pulled close together, for example) and carefully drill away while holding the pot. Just be ready - mud and possibly stinky water will run as soon as the first hole appears.

Once the pot has holes, it's a good idea to run a good quantity of water through the soil till it drains freely - that will leach the accumulated salts from the medium. Do it in the morning, so the soil has drained well before colder darker night comes - roots are less likely to rot this way.

From what I understand, I agree with Jean that the browning leaf tips may be signs of the same problem - the plant cannot take in enough water if too much salt (from tap water or especially from fertilizer) have accumulated in the container, so they start dying of dehydration. Ironically, plenty of water may be present in the bottom of the pot - which is also a big problem because without oxygen in the root zone the plant roots die/rot. You really cannot win with no holes in the bottom of the pot.