Sent BTC to old address of Electrum wallet app, doesnt sync but is online

[Pmalek]

... you are too careless since you downloaded an app based on the recommendation of a random guy on the internet (someone who gives such kind of advices to others must have a minimum level of knowledge to know that you can't import an Electrum seed into trustwallet).

It turns out, that was beneficial for the OP because Trust Wallet won't be able to load and store his seed in its software. But even importing it into the closed-source app and getting error messages when trying to recover the funds shouldn't be done because no one knows what's going to happen with those seed words once an attempt was made to enter them into the Trust Wallet.

[khaled0111]

It turns out, that was beneficial for the OP because Trust Wallet won't be able to load and store his seed in its software. But even importing it into the closed-source app and getting error messages when trying to recover the funds shouldn't be done because no one knows what's going to happen with those seed words once an attempt was made to enter them into the Trust Wallet.

Exactly, since the communication between the trustwallet client (spv wallet) and the servers it connects to then there is no way for us to know what kind of information are being exchanged between the client and the servers. I'm not saying they are doing it but there is still a possibility that your wallet will send your seed the moment you type it in real time.
As I said, it's just a possibility but if you want a 100% secure wallet then you need to seriously take this possibility into consideration.